NVIDIA GTX is still a crapshoot if you wanted to play games on an older system (at least with modern desktop environments that use wayland) and RTX is going to be fine for most things unless you wanted to use Steam Gaming Mode on bazzite (because it was built with AMD in mind and uses APIs that the equivalent in the nvidia drivers are buggy - but they seem to not matter when in games because devs make them work on both cards or have just accidentally avoided those APIs - I’m guessing that’s the reason - I think it’s vulkan related iirc)