Upgraded here from 2014 to 20H2 and all well. Almost a non event, total time under 10 minutes and nothing whatsoever seems to have changed.
By all accounts (in some previous links about the upcoming 20H2 feature update), there isn't that much in this update.
The strange thing (for me that is) it is sitting there in my Optional updates waiting for me to download it.
This is strange in that for every Feature update from 1903 I had to wait months (and on occasion download it directly) for the 'your system isn't yet ready notice' and 'you don't have to do anything.'
So here we are with the shoe on the other foot, its waiting for me to download it. I think I will wait for a while or it won't feel right