Not sure what exactly is happening, but feels very slow. Builds are taking way longer. Tried to run builder with -c and -m to add more CPU and memory.
What setup are you comparing this to? In the past silicon Macs plus, say, Rancher Desktop have been happy to pretend to build an x86 image for me, but those images have generally not actually worked for me on actual x86 hardware.
Comparing to Docker for Mac. Running on MBA M2. Building a 5GB image (packaging enterprise software).
Docker for Mac builds it in 4 minutes.
container tool... 17 minutes. Maybe even more. And I did set the cpu and memory for the builder as well to higher number than defaults (similar what Docker for Mac is set for). And in reality it is not the build stage, but "=> exporting to oci image format" that takes forever.
Running containers - have not seen any issues yet.