For decades there has been endless policy wrangling over whether “unlocking your phone” (removing restrictions allowing you to take the device with you to another carrier) should be allowed. Giant carriers have generally supported onerous phone locks because it hampers competition by making it harder to switch providers. Consumer rights groups and the public broadly support unlocked devices.
Good fucking luck with that now that Chevron has been overturned.
Did congress explicitly say the FCC could do that when they wrote a law creating the FCC? No? We'll say goodbye on appeals.