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 don’t make them with removable batteries because now when your battery dies, the phone is useless. So you have to buy a new one. Phone sales would dry up. We should be moving to a production model of sustainability and durability. Phones and electronics can be made to run indefinitely. The battery is really the only exhaustible part. Replace that when it dies, then the life rest of the electronics is extended. This is the most efficient model, resource and energy-wise.