

If you’re comfortable with helping the Proton developers fix the issue, I‘d recommend searching Proton‘s Github issues for the game that won‘t run.
If your problem hasn‘t already been reported, create a proton log (run the game with the launch option PROTON_LOG=1 %command% once and find the log in your home directory). If an issue for the game doesn‘t exist already, you can open up a new one. Otherwise, append your log to the existing issue in a comment and describe what‘s happening exactly.
The devs over there are usually really helpful and nice. Many of my reports have been fixed within hours or days in bleeding-edge, although it can of course take longer if the issue is more complicated.
These figures just haven‘t gone up all that much over the last decade. Sure, you can get 128GB of RAM and 24GB of VRAM if you‘re willing to pay for it. But if you don‘t want to spend upwards of $5000 for your PC and you‘re maybe not that experienced, you might just look for a gaming rig from a vendor you‘ve heard of before and get 16GB RAM and 8GB VRAM even in 2025 with current-gen hardware.