That's the same blurb they've had forever. Honestly I'm maybe a bit of a pedant but it's filled with bad information.
First off, they're kinda obviously waiting on Pro Tools to go native, so although they state they have internal builds of their plug ins running on M1 they flatly say they're waiting on iLok DAWs to be M1 native:
In addition to the DAWs that support our plug-ins, we also rely on companies like Pace for their iLok license management tools – we cannot ship Apple Silicon/ARM native software until the DAWs and the tools we rely on have also made the transition.
They then go on to state that DP is not M1 native. This is pretty dumb because Reaper just got out of beta recently, and it's listed as fully supported.
On top of that this last paragraph is just bass ackwards!
Using Soundtoys in DAWs with native M1 support:
Logic Pro X, Garageband, and Adobe Audition are all capable of running natively on Apple silicon, so if you are trying to use Soundtoys plug-ins in these DAWs you will need to manually set them to open using Rosetta.
a. To check this – find your DAW in your applications folder.
b. Right-click on it and click “Get Info”
c. In the info menu find the “Open Using Rosetta” option and check it off.
If you had previously opened Logic without Rosetta enabled, you may need to rescan for Soundtoys plug-ins.
You will manually need to set them to open up in native Apple Silicon mode, the AU Universal Binary plug in will open in Rosetta. Here's the clincher, so far no DAW I've installed has opened up in Rosetta, you have to manually change it to running in Rosetta via the method they describe... of course checking the Get Info box "Open in Rosetta".
It's like they completely mixed up the two methods to get plug ins working in Apple Silicon; running the whole DAW in Rosetta, and running the DAW natively with AU versions running in Rosetta.
Anyway yeah I really do like their plug ins, but this is kind of disheartening.
M2 Studio Ultra, RME Babyface FS, Slate Raven Mti2, NI SL88 MKII, Linnstrument, MPC Live II, Launchpad MK3. Hundreds of plug ins.