Linux: Failed to allocate vram fix on nvidia graphics cards

On Debian/Ubuntu

Go to Additional Drivers and select NVIDIA driver metapackage from nvidia-driver-470
Or follow a tutorial video on how to downgrade a graphics card

After you reinstalled your drivers, reboot your pc

Then go to Steam > Library > DOOM Eternal > Right Click > Properties

And add this into the launch options:
RADV_PERFTEST=llvm PROTON_NO_ESYNC=1 %command% +in_terminal 1 +com_skipIntroVideo 1 +com_skipKeyPressOnLoadScreens 1 +com_skipSignInManager 1

Now you can enjoy killing demons on linux!

This worked for me so if it doesnt works for you then well might be a graphics card issue