My guess before reading the comments:

“Everyone hated that.”

I use “Beelink” brand mini PCs for this purpose. (They are the same form factor as your photo.) I have three, and they’re all good. I’ve used multiple distros on them with no compatibility issues, but MX Linux is my daily driver.

They have fans built in, but the cases on the higher end ones are metal, which helps with heat dissipation. The only downside with that is that sometimes USB peripherals get super hot while plugged in, and I had a mouse dongle that would overheat and malfunction. A simple USB hub fixed this problem (the hub itself apparently didn’t mind getting hot).

I use a “Mini Keyboard with touchpad” on the ones connected to TVs. I recommend those as well. Rii brand is decent.

1. Ubuntu studio is already stupid easy to install and has recording and gaming support out of the box?
2. You’re right that a lot of people around here don’t like Ubuntu. But it IS stable. And I’m not sure as a Linux noob you’re even going to notice the things that they don’t like. You could always try out multiple distros before choosing which one you’ll stick with. I’m not aware of any other distros like Ubuntu Studio. I use it on one of my laptops because it has great midi keyboard software pre installed for free. It’s just about the only way to get similar software for free without compiling it from source code yourself.
3. If you have no other computer, please make a backup Linux install USB and put it in a safe place. You will have absolutely no way to save your system if it fails. Even Windows fails sometimes. Maybe look into Linux system rescue specific distros.
4. Ubuntu is already Debian based (in case you didn’t know).

Edit: by gaming support out of the box I mean: just install one of the following apps through the Discover app: Steam, Lutris (supports multiple game launchers including Steam and EA), and/or Heroic Games (for GOG and Epic). There’s even a few more launchers like Bottles, but I never had much luck with it. There’s several options for Minecraft launchers. And, there’s even many open source games you can install directly through Discover. I recommend Super Tux Kart. It’s solid.

This advice is true for pretty much any distro, although the name of the app manager changes.

Frottage is more than “touching tips.” It includes rubbing the member anywhere on skin.

You’d think, wouldn’t you? It’s rare, but straight women are there all the same. Usually looking for gay friends or bisexual guys, or so they claim in their profiles. I always just blocked them.