I would most likely be using a phone with Ubuntu Touch on it as my daily driver if it wasn’t for the fact that the cellular carriers force me to have VoLTE support for calls, which is kind of the point for a phone! And guess the one thing Ubuntu Touch doesn’t have support for!
The other fun one is when you can’t watch a sporting event that you paid for because the only legal streaming service that has it crashed part way through, but there are working free alternatives floating around.