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.
I don’t know if this helps you at all & I don’t know what gear you’re using, but Shure has a bluetooth receiver for their line of in ear monitors that plugs directly into the buds. It’s called ‘true wireless’. I have an old discontinued RMCE-BT2 model that works great and fidelity is indistinguishable from wired, to my ears, at least as far as connecting it to a phone goes. The new model is expensive unfortunately, so I don’t know that it really solves your problem, but it’s convenient & I can recommend it if it’s within your budget and compatible with your gear.
Ive used other bluetooth attachments for other iems like TRN and KZ with my iems
Use it wired on my laptop and wireless outside