I updated my OP5 from 16.04 to 20.04 and I have the same problem. However youtube started working after swiching from stable to development channel. Some online videos / streams are still not working.
@detrminant It has to be a proper power down and restart. Quite often the first 'power down' just restarts lomiri. If this happens try another shutdown which should work. Then long press power on to get the Volla splash screen to restart and wifi should be back..... same for BT (after starting the service).
