That depends on what you were updating from.
If you were on anything earlier than Version 2004 it could take quite a bit of time to update to 20H2, particularly if you don't have a very fast internet connection.
Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042
One does not discover new lands without consenting to lose sight of the shore for a very long time.
~ André Gide