The only thing I would change is your backup drive. Linux can write to NTFS without issues. You’d be better off with 2 TB instead of 2x1TB.

I would get rid of all the HDDs for games as they are too slow. Verifying files under steam or other clients is so slow compared to SSDs. (If you can afford it of course, otherwise it’s fine)

There isn’t anything else wrong per-se. Except for still having windows installed 🤣. Proton (wine) via steam or lutris, solves 99% of all issues with running games on linux. (except for Anti-Cheat games like valorant).

Riseup is free because it is made by people who want the internet to be better. The same way tor is free.

But you should be donating if you find it useful. And I could nearly guarantee that a service that is used for censorship resistance that gets used for P2P will go from nice and fast to ungodly slow

Technically you should be donating if you get value out of it