The EU forced Apple to use USB-C on iPhones, because it was stupid and wasteful for people to have two different types of chargers in their home for their small electronic rechargeable devices. Government does have the power to regulate things like this. They would need to be educated to understand the importance and benefit of it.

The EU was actually on the path to forcing everyone to use micro-USB. Thankfully Apple (and others) pioneered USB-C (bringing what it learnt from developing the lightning connector) in the time it took the EU to go from making all of the phone makers sign a Memorandum of Understanding to making it legislation. Now the EU is frozen in time, stuck on USB-C for the forseeable future. The economics to make a device dual port (USB-C and something new) aren't there, so we're not likely to ever see an improvement on USB-C... in an alternative timeline, we could have been stuck on the even worse micro-USB.

Bringing it back to the topic on hand, this is very much an area I wouldn't want to see a heavy handed EU legislate something that just further cements the incumbants and makes everything worse forever... just like mandatory micro-USB would have been. I can totally see the EU legislating something like a mandatory Meta communication protocol with compulsory attestation from Meta servers.

Apple changed to USB-C after Lightning was ten years old, exactly as they promised ten years before. The EU regulation didn’t force Apple to do anything, its deadline was a couple years after Apple switched, and Apple assisted in the creation of USB-C and after they had already switched their laptops.