Prismlauncher! I remember browsing through the changelog and spotting this, made me chuckle internally.

Unmotivated? Its a literal checkbox in the anticheats that games package to enable running in Proton. This is not Valve’s responsibility, but idiot or lazy game companies/devs.

Secure boot is what I think you’re thinking of because of Battlefield 6. But as I understand from just skimming it, its handled a bit differently in Linux than Windows, so unsure of how that could be handled or adapted for native Windows games.

It’s Alpine Linux’s package manager.

Yay but especially apk keep it much simpler than apt.