Can also confirm that the bug is still there in Sonoma. I note quite a few people having this problem with DisplayPort connections but i'm using HDMI and it's happening to me too.
Dell S2419H connected via HDMI through a Satechi multiport adapter via USB-C.
brandonyap
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution