If you can afford it it’s a good idea to buy a Raspberry Pi since Raspbian is basically just debian. Then replicate your current setup on it and just try to tinker with it without any risks of breaking things or losing data.

If you’re using a lot of Docker I would recommend learning the command line since you’ll be able to use Docker on basically any real OS at that point.

plus the current NATO proxy war and economic murder attempt of Russia

Wow, why would “NATO” do this? Russia hasn’t invaded anyone since 2022 2014 2008 1999 1994 1979 1968 1956, that’s such a long time ago, and those Hungarians totally deserved it.