I've been pretty disappointed with eStargz performance, though... Do you have any numbers you can share? All over the internet people refer to numbers from 10 years ago, from workloads that don't seem realistic at all. In my experiments it didn't provide a significant enough speedup.
(I ended up developing an alternative pull mechanism, which is described in https://outerbounds.com/blog/faster-cloud-compute though note that the article is a bit light on the technical details)
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.