What I would miss most leaving the subscription trap "Adobe" ist Bridge's possibility of reviewing 3-4 Pictures in one split screen or 5 or more in the "carousel" mode. If PM had that before I would have - for sure - swoped from Adobe to PM only already years ago.
Or eventually anything similar letting us focus on quickly comparing/tagging/Rating many photos in one go.
I'm going to merge this with an existing request to let you compare more than two images. Thanks, Sebastian.