There's a full read over on Neowin for those interested. I hope you are reading this Norton.
Cheers
Still no sign Norton is getting on this seriously.
I couldn't work out why Big Sur Beta kept shutting down every 20 sec and it was due to Norton, so I have removed Norton and reloaded Big Sur with no problems except that Norton will not install need to say Im very disappointed that such a major company as Norton have not got this updated yet 
Aa almost every app works with the Big Sur Beta2, I would appreciate Norton brings out a beta too ...
It took Dropbox only a few days to be compatible again ...