They're also designed with pretty good graphics pipelines, which LL refuses to take advantage of by limiting themselves to OpenGL.
You're in luck. I have an M1 Max on my lap. 10 core, 32 GPU core, 32 GB, 1 TB. I'll be happy to post my experiences here.
Because OpenGL isn't supported, you run into some of the same performance issues.
Also, this MBPro came with Mac OS 12 (Monterrey). As with every OS update, we'll have to wait for LL and Firestorm to smooth out a few wrinkles. At the moment, Firestorm runs a little more smoothly on my original M1 13" MBPro, probably because it's on Mac OS 11, and many of those bugs have been squashed.
Also, also, the M1 Max has a slightly different display, which has to be properly tested against.
It's really a little disappointing to see LL fall so far away from the Mac. Ten or twelve years ago, I was in San Francisco and got to peek in the windows of LL HQ. (Then as now, they don't do tours.) Nearly every desk had a Mac on it.