The difference is absolutely marginal. The main slowdown sources is mounting huge volumes from the host, that's definitely works better with Linux. And emulatin

The difference is absolutely marginal. The main slowdown sources is mounting huge volumes from the host, that's definitely works better with Linux. And emulating x86_64, if your container does not have arm64 build. But if you don't need it, I'd argue that M1 performance will yield faster containers compared to average Intel laptop.