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.
They’re already doing it iirc, new models of iPhone might have usb-c in Europe and Lightning elsewhere. Nothing that stops you from buying European ones though, sure.
Oh shit, I had no idea.
I got pointed out from another comment that they probably ditched the idea. Nothing confirmed, but it seems so.