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.
Not OP, but I’d just replace the battery. Why get rid of an otherwise perfectly good phone? I still use my OP6 as a backup phone, replaced it’s battery recently and installed a new ROM and it flies. Could be mistaken for a brand new phone, if one didn’t know any better.