Again, all these games are available on console (mostly) so the excuse to not support Linux is conscious. Those ARE Linux machines. Essentially. (Yeah yeah, they have their own tool chain and rendering) but if they are using Vulkan, DX12, DX11, and a window - it can run on Linux.
Technically PS5 and I think Switch 2 is based on the BSD kernel probably because of the license. Xbox is not exactly Windows but it's using an NT kernel.
Of course, and it's mostly DRM and/or anti-cheat. The studios want full control over the device running their IP, and they can't achieve that with desktop Linux, but they also don't want to leave the PC gaming market behind entirely to launch exclusively on consoles. Hence why the Windows versions of these games install rootkits on your PC, they aren't cooperating with the PC ecosystem, they are forcibly turning your computer into a locked-down console.