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.
Android/Google tried to make this a bit easier through Project Treble, which is like a “core” of android that can be easily updated, then vendors build their modifications on top of it. It’s pretty widely adopted now, but that doesn’t stop companies from deciding they don’t want to support hardware from three years ago even though it is still compatible with the latest Android core.