DOOM — Steam Launch Options

Set fullscreen mode (0=windowed, 1=fullscreen)

Proton/Wine compatibility option.

Set custom screen width

Copy and paste this : 1 This is all! thanks for reading! PS: You can also check my Launch Straight to MP mode guide

Set custom screen height

Proton/Wine compatibility option.

Control V-Sync (0=off, 1=on)

Skip intro videos (set to 1)

Use jobs_numthreads X in the in-game console

Launch option from PCGamingWiki