I replied about getting the updated kernel on Bazzite on another one of your comments, but I want to clarify that this is not only a bug for those that have resizable bar and 4g decoding as BIOS options, and it does not always happen on game start. I just want to reinforce that this is very likely the exact issue you are experiencing, and it is patched in kernel version 6.9. The only reason you don’t see the popup from the linked issue is because that is a check that was added in 6.9rc-5 to validate hardware capabilities; the root issue underneath has been present since 6.6.30, but only results in a crash with no error dialog. This particular kernel bug happens when the CPU runs out of VRAM space that is accessible to it, and tries to move data to other parts of VRAM (with the help of the GPU) to make space in the section visible to the CPU. Since resizable bar makes all VRAM visible to the CPU, that’s why it fixes the issue for some, but that is not the root cause of the problem. There is an off by one error discussed in the kernel bug thread that was linked that incorrectly handles the VRAM swapping and only became an issue after a check was written to validate the hardware capabilities (which fails due to the off by one error). This can happen after some time playing the game, after the CPU-accessible part of VRAM is filled up, however long that takes.
This will be fixed in a few weeks when the 6.9 kernel is pushed to the Fedora repos, or you could compile and install the 6.9 kernel using my instructions on your other comment. Or you could continue to use Mint until the kernel is updated, whatever works for you. Other than this one obscure kernel bug, Bazzite will generally be the much better option for gaming as far as performance and user experience goes. Mint follows the Debian/Ubuntu update cycle, so its kernels are old and without many enhancements to gaming that exist in the newer versions of the kernel present in Bazzite and Fedora. Of course, you can choose whatever distro you’d like, I just wanted to provide a method for you to switch back to Bazzite if you prefer it (and explain what the issue is and how to fix it).