Thank you very much!

I’m glad it was at least about something fairly trivial.

Any chance you remember what that one edit war was about?

These are all pretty easy to answer with a search, but here’s some info to get you started:

Does Linux have a windows GUI?

Lots of distros are similar to Windows in many ways. Some are specifically geared towards Windows-to-Linux migrants, or trying to be as close to Windows as possible. They are all much more customisable than Windows too, so you can change it to whatever works for you.

Linux Mint is often recommended to newcomers. Zorin OS is another good option that is more like Windows.

https://www.howtogeek.com/windows-like-linux-distros-you-should-try-out/

Do all the steam games have Linux compatability?

No, but compatibility is constantly improving and more developers are natively supporting Linux.

Game compatibility list: https://www.protondb.com/

Also, Windows app compatibility list (though many Linux app alternatives are better than their Windows counterparts IMO): https://appdb.winehq.org/

Is there a Linux version of Windows Defender?

Windows is far less secure, and targeted by much more malware due to it’s market share.

https://linuxsecurity.com/news/security-trends/antivirus-linux

Many Linux users don’t bother with antivirus software at all, but yes, there are plenty of options available.

https://www.tecmint.com/best-antivirus-programs-for-linux/

Great thing about Linux is you can change your distro whenever you want.

If you’re uncertain, or not ready to go through the process just yet, you can always just boot Bazzite off a USB drive and play around with it for now.

As someone who was in your exact position several years ago, nice!

I’d recommend Linux Mint to newcomers though. It’s based on Ubuntu and is even easier to get comfortable with (much better GUI for updates and app “store”), but it strips out all the Microsoft-like stuff that Canonical have been doing in recent years.

Pop!_OS (also based on Ubuntu) and Bazzite are also meant to be beginner friendly, and are particularly geared towards gaming on Linux, especially the latter.