It depends on what you're doing with Docker...

Docker runs an arm64 Linux VM on an M1 Mac. My experience is that it works well for anything that has arm64 images available. It can also run x64 containers via QEMU emulation.

I found this to be hit-or-miss. I need the full version of MS SQL Server for one of the projects I work on. MS only supports x64 and the image won't start because of what looks like some kind of memory mapping/translation problem with the QEMU emulation.

I have the 16GB M1 Air. Haven’t done a lot of Java on it, but it seemed to work smoothly. Docker works okay but IO is really slow. I’m not sure if that is due to the new architecture, or if it’s just due to Mac running docker in a VM.