GL-RM1 1280x1024 resolution

Is it possible to configure 1280x1024 so that it is not displayed squashed in a 16:9 box? This resolution is very good for reading, and the default for a monitor I like - DELL P1917S

The EDID for this monitor is at https://raw.githubusercontent.com/bsdhw/EDID/refs/heads/master/Digital/Dell/DELD092/CD05D60B1A44

FWIW I checked at random some other EDIDs from EDID/Digital/Dell at master · bsdhw/EDID · GitHub and some work in 4:3 others don't no idea why