I used to unlock the bootloaders for a couple of years on all my phones, 10 years ago or so. I installed cyanogenmod and used it the way it was supposed to: rooted. But then Google Pay came along as well as banking apps that actually did their jobs better then the banks' web sites. You couldn't use either of that reliably with a rooted phone. So now I am back to stock android and I am actually quite happy with it. I like the google services, including Google Pay. Also, stock android improved a lot since the early 10s.