Secure boot is a good thing. It’s a security feature. You want it on whenever possible, unless it’s a huge trouble (like if you have to start manually signing your own keys and adding them to the bios).

Edit: added the word manually

Those projects look great! I will have to check both those out. My problem with a lot of community FPS games is that the community is just too small to play regularly (like Xonotic, for instance).

Do you prefer GoG?

That’s a fine answer, thanks!

Thank you for your thoughtful response. Deep Rock Galactic looks amazing!

This is a very smart and thoughtful perspective. One should consider their time and money as valuable, and not put it in games they disagree with. Do you have any good alternatives to recommend for the most popular Valve FPSs?