Im going to do a clean install too, but I will probably do it as soon as its available. Im one of those who cant wait to update but then run into bugs and eagerly await them to be fixed.To me, it makes no difference what it is called. And as it is, I certainly will not be upgrading right away. Due to waiting for Tech Tool Pro to have a Big Sur update available, I suspect I will not be "upgrading" (actually a clean installation) until the 3rd update for Big Sur. But as Arnie says, No Problemo, as 1) a lot of the bugs with initial releases of Big Sur will be worked out by then, 2) I see nothing earth shattering in OS 11.x for me to have right away, and 3) Catalina runs fine.
Ive got a feeling Apple will stick with macOS 11 for some time and continue like 10 did. Although I don't think I would be surprised either way.