Adobe has a native M1 Photoshop in beta now and plans to port Premiere after the first of the year. You may be overestimating the effort to “port” to M1. For most apps, it is just a new compile target and a bunch of regression testing.

Adobe is a top tier developer.

They get access to pre-release hardware, on-site Apple engineers and rapid fixes whenever something doesn't work.

Very different from all of the other third party developers.

It's a beta, not a release version.

And it wouldn't be possible to run an M1 beta if there were no M1 products on the market.

But, in theory at any rate, Rosetta2 will allow you to run all that software on Apple silicon.

We already know that Rosetta2 doesn't support everything.

Do you have any links? Other than virtualization, I hadn't heard about any limitations.

Edit: Looks like kernel extensions aren't supported either.

Certain advanced instruction sets are also unsupported by Rosetta 2.