macOS M1 Mac Mini: Wake from Sleep Resets Resolution, Refresh Rate, and Arrangement
On a dual monitor setup: HDMI and USB-C monitor. Since installing Ventura, the M1 Mac Mini (2020) will reset the arrangement, resolution, and refresh rate. No change of ports. I like to limit my displays to 60hz and 1440p for both power conservation and stable frames -- and it used to keep these settings.
Mac mini 2018 or later