The thing is, there’s A LOT of software out there. The big players like adobe, popular video editors, web browsers, etc will have it easier since these companies have big teams. Smaller software (including open source software) run by smaller teams (you’d be surprised how many -quality- apps are maintained by 1-2 people) will have it harder to maintain 3 versions (Intel OS X, AS OS 11 and maybe Windows). At least for the next 3-4 years developers cannot afford to stop maintaining apps designed for intel systems since most Mac users are and will be using intel Macs.
Apple expects to fully transition to Apple Silicon in the next 2 years I think? Then give it another 2-3 years to have the majority of Mac users on AS.