The proposal is: batteries must be removable using commercially available tools, if the manufacturer requires specialist tools then they must provide them for free.
Essentially they're banning specialized tools, and mandating that repair shops and consumers must be able to purchase replacement batteries for "at least five years."
For context the iPhone was already altered to be compliant with this law and none of the issues you raised were notably worse in the iPhone Air, or 17.
This likely will eliminate specialist software to "sync" batteries, and non-standard screws/attachment mechanisms.