@sdetweil Yes, I did! I tried switching to x-11 and adjusting all parameters, but ended up switching back to wayland which works fine with a scheduled shut-down in the evening. Thank you once again for taking the time to lead me through this!

@mumblebaj

Works great, but when the monitor switches back on, chromium does not start maximized and shows the infobar, both of which are managed in the [autostart] section of wayfire.ini. Is there a way to get the MM display back just as when the Pi launches fresh?