[crote]

The value is mostly in the software workflow, not in the software tooling.

Store your KiCad files in Git. Make a script which automatically adds a revision tag to the PCB. Create a CI pipeline for Gerber generation. Export PNGs so you can do visual diffs.

If you're collaborating on some project which consists of artwork made in Photoshop you aren't looking for a text-based drawing program either - you are looking for a better way to do diffs.