So far mine has been spot on with no synch problems except every now and then on YouTube but they are out of synch with or without the sound bar so not at my end.
I bought a new tv when we moved and matching sound bar not long after when I found my Sonos was scrap. My hearing has definitely gone off but massive difference between sound ar on or off, much fuller/richer sound on.
Saying that I am in the van most of the time so don’t get the benefit of it very often, much to big for my van at just over a metre across. Only downside I have had is it’s wireless technology is Bluetooth rather than wifi but for tv connection thats okay