I will be upgrading to Big Sur this week/weekend.
I have finished my taxes and now no longer have fear of an issue with the Intuit TurboTax software not being supported. :-)
This will be my 2nd Big Sur box the other being a Mac Mini I just acquired recently.
Plans to acquire an iPad Pro for the Mrs. when 4/30/2021 arrives and pre-orders are being received. :-)
—Stuart