Matlab native for M1 was released as beta under R2022b, beta will be open until end of June
https://blogs.mathworks.com/matlab/2022/12/08/playing-with-the-r2022b-matlab-apple-silicon-beta-for-m1-m2-mac/
I suppose that the plan is to release officially M1 version under R2023b
I tried to run some brainstorm function with M1 native installation, and they are much more slower the running them in Matlab under Rosetta 