Thank you for your extensive answers, now i have more questions than before :-D Due to time and energy i tend to an out of the box, non OSS solution. I'll keep you updated on my decision and how it went

This is a great community.

Today i installed Debian with the intention to initially set up my linux gaming system. The installation was ok, but everything after that seems like a lot of effort e. g. installing Nvidia drivers, apt doesnt know steam or discord...

Do i really have to Invest that much research or so i miss Something? Is there a better distro for me?

Good Point, right now i prefer a plastik box for convenience. Unify and Fritzbox are already my shortlist.

Thank you

This is definitively a solid and straight forward plan, i like.