The 'previous' trick with using the Ruby script and placing the information in .../Program/Library/Displays/Contents/Resources/Overrides/ does not work any more, even with SIP disabled as being the file program is currently mounted go through-only. You can mount it read-create but which is a really extended-winded and probably lethal Option. Apple has https://ragged-point-big-sur30740.bloggerchest.com/35151491/considerations-to-know-about-big-sur-scenic-views