I watch most from my laptop without logging in*
So the only time I listen under my youtube handle is when I'm in the car logged in via my phone.
I'm not sure I've missed a video in a couple of years though. I'm probably at 0.5%
* I just don't like feeding algorithms. I truly believe there is a psychology behind them beyond what most of us understand. This keeps my search results wide open and not leaning towards results I might have extreme feelings (positive or negative). So I just bookmark my sites, use a VPN, use Brave Browser that deletes all my history upon exit, etc..
Most guys who go out of their way to be that anonymous are either doing shady things or are simply paranoid that someone is monitoring them. I literally do it to protect me from myself......if that makes sense.