Yeah, no, of course. But that's kinda my point: there was still an initial pairing. I'm not trying to be antagonistic or anything. I just find it a bit silly that one could research how to replace their entire OS with one they're not familiar with but not realize they're gonna have to re-pair their BT devices.
Then again, I think we're all guilty of sometimes missing small details. I once put a PC together for a buddy and couldn't figure out why it wouldn't post only to eventually realize I was a dummy who forgot to plug in the CPU power. 😂