He could be using Arch! They missed out big time there!
I don't know what functionality those other ones have. People suggest Friendica.
I use Nextcloud for easy photo and document sharing. It has a gallery thumbnail display too. And a choice of privacy levels. I use a free, hosted Nextcloud, as I don't have a server.
No mention of centralised versus decentralised social media. The thing that makes the biggest difference. No ads. No algorithm. No lock in, swap networks keeping friends and followers. Tune your timeline to suit you. Calling everything social media is trash journalism when those issues are already solved. Clearly he has no clue about the topic.
With many critical apps still running on Windows only, Windows needs to get worse!
To push those software companies over to embrace Linux finally. Then the users can follow.
Non IT people need to back up too you know? And there are many more Windows users backing up compared to the number of IT pros.
Buy an off the shelf NAS for backups. Plug it in to your home router, and you are ready to back up. Unlike a USB drive, a NAS, such as a WD mycloud, is ready to use any time. Smart people like a convenient option. It's often recommended.
Make it hard to manage, and sure, they'll need to rely on someone else for help. But as we see on Windows, backing up to a share is easy.
Why ever defend bad usability?
One thing where Windows has an advantage over KDE for non IT people, is applications can directly access network shares. Most KDE applications don't even show the network in the file browse selector. So for sync or backup apps it only works with mounted shares. Which isn't necessary in Windows. To mount a share in KDE it's convoluted and a hack that is no good non IT users. If they expect good usability.

Here is a container of DIR.
Which is called a pen! Hmmm.
I guess most Windows users don't know what DIR is or even where to use it.
"Do you use DIR?"
User: "Do I use what? And don't call me dear."
Opening a folder in Explorer automatically shows the contents, saving the need for an extra step.
Yes, a directory is a list of items. Like a telephone directory. A folder is a container of items.
In 2009 I added Folder to the Wikipedia page Directory (computing) Explaining the Folder Metaphor in both English and German (Verzeichnis/Ordner). My clarification has been tweaked and altered slightly to bring it into line with Wikipedia standards, but it has stood the test of time.
I always use the term folder in Linux circles when referring to a container of things. It's useful to stress the importance of the user interface, which is often misunderstood by many there. Be proud!

For me a good viewfinder makes framing and composition decisions way easier than the phone screen. Especially in bright sunlight.