Bringing in feedback from a comment on a recent core editor improvement post about style revisions:

To consider adding search to the revision functionality. On sites with many folks working, it”ll be paramount to search for revision authors, specific changes and more.
Eventually, it would be incredible if we could introduce non-linear versioning. Allowing each block to maintain its own versioning. This would make it incredibly easier to target and roll back specific changes, rather than blanket changes.

Specifically, these requests open the door for a data views style revision history where you could filter by block, search by user, etc. The block having version history is beyond this scope but points to a similar need to see block specific changes.