I think the changelog is pretty clear on that, but I assume for many users this is not a "just" thing and matters a lot. Enshittification started before this change, but now it's really obvious where they are heading.
In my personal opinion, this is a perfectly fine change. The company has to make money. Nudging corporate users (who are incapable of running `mc`) towards purchase of license to have a web UI is a nice solution, I'm all for it.