Deleted album photos still in import library -- easy fix?
I've been systematically cleaning up all my albums in Photos, deleting hundreds, even thousands, of trash photos. Only I've just realized today that while they are no longer in the albums, they're still in the import library. Is there some miraculous easy fix to find all the photos that are NOT in an album and delete them? Or do I need to re-do all the work I've already done, by going through the tens of thousands of photos languishing in the imports library and RE-FREAKING-DELETE them? Oh please help.
MacBook Pro (2020 and later)