Good to know it's not just me. I don't recall my fingers being wet in any of the instances, so I think it's definitely some bug. Prior to this rom with LOS19 and Sleepy this was never an issue.
As for the Bluetooth disconnection, funny enough I also experienced that just yesterday with the car. It did exactly what you said and it kept setting off my notification sound continuously. However, the issue here was that it had my device saved from when I was using LOS19, so assumedly the car was trying to connect with the wrong code.
Thanks! That was my next move to try the Sleepy kernel to see if it resolves the issue. The next time I experience this issue on stock kernel, I'm going to make the jump. Hopefully that'll be the fix.