I'm very aware of this thanks, however for training to run I went for convenience.
I like comparing with my friends in the app and using the training plans etc.
The fit to gpx converter is a good way to extract hiking data though!

Garmin Forerunner 55.
It's the most basic one in the running series, but it works well enough for what I need it to do.
It's the first real "closed ecosystem" device I own, as usually I go the open source route for everything, but Garmin has a good track record and the device has helped me train for a half marathon really well. I put a "casio"-style watch face on it, and I enjoy it a lot.

The fact that people were registering .ml domains for projects like this is mindboggling. There are many TLDs to pick from without infringing on the terms of use of a country-specific one.

It's completely valid for them to do so. Their Top Level Domain meant for their purposes.
Even though it's rarely enforced, many TLDs have specific purposes and conditions against abusing it for unrelated purposes.
There are many others to pick from.

https://friture.org/
I used to use this one when I was still mixing live music on analog gear.
I had a linux laptop running with jack2, on the headphone out of my soundcraft desk connected to my usb audio interface, visualing the input. (Which would be the single instrument I had selected or the entire desk output).
I'm sure it would work well for locally playing music as well.

I try to avoid running at the worst times, and just try to keep my current distances and pace, though they have fallen a little.

I've been on XFCE for well over 15 years, maybe nearly 20.
In the beginning I ran Xubuntu because it was faster than Gnome 2 on my ancient laptop.
Nowadays, I just run it out of habit on top of Arch. I've had my stints on KDE and modern Gnome, but I like how "out of the way" XFCE is.

GSDE looks interesting, but I'm sure it will only appeal to the Elders that have used nextstep and similar UIs.

Since most comments are focusing on exercises you can do: Diet is a large part of it too.
Things like leafy greens and berries contain a lot of antioxidants and phytochemicals which help combat inflammation.
Nuts and Seeds contain Omega-3 fatty acids which are important for joint health.
Make sure you get enough calcium for general bone health too, and you have all the vitamins and minerals in your diet.

It's very anecdotal, but I used to have ankle problems while running, and minding my diet more has helped a lot. I don't have joint pains after long runs anymore.

It doesn't look like it has been mentioned here yet: https://www.amazon.com/Skeptics-Guide-Universe-Really-Increasingly/dp/1538760533
This book goes really deep into every different kind of logical fallacy.

Not to revive any lame memes, but have a look at Arch Linux! I've been daily driving it for 10 years. It's way more "updated" than fedora is.

I am worried about the impact it will have on clone distros like Alma linux.
The code can still be accessed from a free developer account, but I'm not sure about the implications it will have on the legalities and licences.

I nuked my 10 year old post and comment history, but haven't been able to pull the trigger on account deletion. Soon, maybe.