Given the trail of broken gear left in the wake of successive macOS updates, I'd hold off going for Big Sur. I suspect the industry will advise the same....
The tech press panicked DJs with untruths about the end of iTunes in macOS Catalina. We posted the correct info in June. Nothing has changed, but here it is again. ...
Preempting the release of a macOS update is PR telling you not to update. Serato is the first, but the death of iTunes makes this a tricky update for DJ software companies....