In our case some machines would need to access less than 1% of the image size but being able to have an image with the entire model weights as a single artifact is an important feature in and of itself. In our specific scenario even if eStargz would be slow by filesystem standards it's competing with network transfer anyway so if it's the same order of magnitude as rsync that will do.

I don't have any perf numbers I can share but I can say we see ~30% compression with eStargz which is already a small win atleast heh.