I use an operating system called zorin.
(I get the you tube message all the time)
top right has a clock I just wait for it to go around then it turns into an X.
i then delete message and continue on with you tube
MOST people wouldn’t understand WHAT Zorin is..
I believed it is another OS based on UNIX/Linux..
Most FReepers would not bother to change their OS for a simple solution... But I do understand you giving your 2 cents. I also use Linux/Unix/Winblows...