It had been in the works for a while, but now it has formally been adopted. From the article:
The regulation provides that by 2027 portable batteries incorporated into appliances should be removable and replaceable by the end-user, leaving sufficient time for operators to adapt the design of their products to this requirement.
Yeah, that is so unfortunate. As someone who really wants to move to Europe someday mainly because of their excellent regulations regarding tech, Chat Control has certainly made me rethink that decision, though not really cancelling it outright.