Their website and a Wikipedia article about them are below.

https://calibre-ebook.com/

https://en.m.wikipedia.org/wiki/Calibre_(software)

That's right, there is nothing wrong with what they (Beehaw) are doing. Some people find it desirable and join them due to that, others find it detracting and do not join, and even more people don't care one way or the other. People join instances for all sorts of reasons and variety helps create interesting choices.

I just mentioned what Beehaw was notable for doing in recent history since you were curious. Their actions did generate "a bit of buzz" on the Internet so people kind of associate them for the actions that they have taken.

I have no idea what’s going on at beehaw.

Specifically answering this thought...

Beehaw is the "Aspiring to be(e) a safe, friendly and diverse place." More information is available on their site at https://beehaw.org/ but below is a summary as far as I know it.

Quoting from their main page on the right side...

We’re a collective of individuals upset with the way social media has been traditionally governed. A severe lack of moderation has led to major platforms like Facebook to turn into political machinery focused on disinformation campaigns as a way to make profit off of users.

That policy is reflected on how that instance operates. They are known to be an instance that has defederated with a very large amount of other instances due to policies that those instances have as well as other things such as allowing anyone to register for an account without account approval first. (A listing is at this link and the instances they are block are under the Bl column.)

The defederating from a place because it has open registrations means that Beehaw defederated from the largest Lemmy instances due to that (referring to lemmy.world). The concern is that open registration may let undesirable people register and they do not want to federate with an instance that would condone that. If they kept the federation intact, any users "openly registering" over there could just participate on Beehaw. Beehaw prefers that their participants are vetted by someone first.

https://lemmy.sdf.org/post/66921

As such, Beehaw's policy is to have a more isolated instance where they only interoperate with instances which are compatible with their overall mission statement. Some users prefer that and seek them out specifically for that. Other users are turned off by such things and find other instances to host their account.

Fortunately, you are able to create an account with whatever instance you want and migrate over to that new instance. Unfortunately, your account information cannot migrate over there (since Lemmy does not support that). Still, you should have account on an instance where you feel the most comfortable and then you can subscribe to communities across the Fediverse that interest you (assuming, of course, that your instance is not blocking them or is being blocked by them).

Anyway, now that I know this I’m going to look out for second hand chrome books. Think I could run a Plex server on one?

You can refer to https://mrchromebox.tech/ for a listing of what chromebooks that firmware can be flashed on to (refer to Supported Devices on the left). Chromebooks ship with a modified BIOS that will only work with the Chrome OS that installed on those devices. Their BIOS/firmware is also in read only mode but that can be disabled usually by removing a screw somewhere on the motherboard. After that, you have to flash that alternative firmware over so that the computer can have a BIOS that is compatible with other operating systems (consequently making the computer unable to run Chrome OS).

The FAQ (linked below) mentions that there is a "handy spreadsheet" compatibility list as well. Notably, some Chromebooks are not quite compatible with Linux and show this by literally frying their speakers (supposedly) if you try to use Linux on them... so you may have to be selective in what you purchase.

https://mrchromebox.tech/#faq

AI coming up with sayings of that type is something already being done ( https://inspirobot.me/ ). Youtube reaction videos exist referring to that site (like "Ai Generates Hilarious Motivational Posters" by jacksepticeye).

This seems like a rather new situation. The Github links below seem to mention that other instances were also suffering problems.

https://github.com/LemmyNet/lemmy-ui/issues/1895

https://github.com/LemmyNet/lemmy-ui/pull/1897

It appears like a fix was only made available about an hour ago.

https://github.com/LemmyNet/lemmy-ui/issues/1895#issuecomment-1629219976

Windows 11 is supported longer and will receive patches for longer than Windows 10. In fact, I believe Windows 10 is only supported for a few more years. To ensure that you do not have an unpatched (therefore insecure) operating system on the internet, you will either migrate to a newer version of Windows or to a different operating system eventually.

That all being said, Windows 11 was commonly referred to as being faster than Windows 10 on the same hardware. The largest gripes are that Windows 11 has very strict system requirements (therefore not officially working on most computers) and that Windows 11 has a different user interface (taking away some things people like). Windows 10 or 11 are operating systems which basically need to be installed on an SSD so be sure to consider upgrading to that if you have not done so already.

I'm pretty sure that an upgrade to Windows 11 can be reverted and you can go back to Windows 10 if necessary. Still, I would back up any valuable data before experimenting.

On the Linux side of the world, Steam can be installed on Linux and devices such as the Steam Deck exist. Depending on what games you play on your gaming PC, Linux could be an option.

The differences between Windows 10 and Linux are greater than the differences between Windows 10 and Windows 11. In other words, Windows 11 may be a bit better or worse (depending on your opinion) but it isn't majorly better or worse.