Obs games look stretched

[WeirdoChip]

I recently got a new monitor, 34 inch curve monitor and now all my games on obs look stretched. I really have no clue how to go about to fix this and yes I'm probably staring right at the answer.

 

[koala]

Your issue is discussed in this guide:

Aspect Ratio Guide | OBS

OBS Knowledge Base. Learn how to properly make your content fit on your canvas, and how to deal with aspect ratios and scaling

obsproject.com