The reason for failure of updating software, is the reason for the internet connection is not strong. You have to update your software which the internet connection is become very strong.
I've been having the same problem since the update released and can't find a solution anywhere either. Came here and seen your question and thought I'd found an answer 😒. The search continues I suppose. I hope we both find a solution; best of luck!
*Found a solution and it worked. I'm using Samsung Galaxy Note 10+
boot your phone into Safe Mode, it runs without third-party apps or services. That way, your Android should be able to download and install the system updates without interference.