I’d like to throw my experience in as well. I’m on Manjaro using the hybrid graphics (PRIME render offload using prime-run command). Everything worked fantastic in 440.XX level driver and then once I upgraded to 450 and/or 455 I saw a massive decrease in performance… to the point of dipping into the 20fps range.
I use an MSI GS65 Stealth Thin with 1070 Max-Q 8GB.
When I look at Doom Eternal’s performance info, the main delay is coming from the GPU at 15-20ms when idle. CPU is 5-10ms.
UPDATE:
I’ll add my graphics memory usage seems really low using nvidia-smi during gameplay:
±----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 492 G /usr/lib/Xorg 44MiB |
| 0 N/A N/A 99593 C+G DOOMEternalx64vk.exe 497MiB |
±----------------------------------------------------------------------------+