I noticed, the k9s snap packages version 0.7.12, I package the latest 0.20.5 so I guess things have changed. I noticed plenty of apparmor denials when I tried running it w/o the cache directories.
I have pinged the maintainer (and the owner of the snap k9s) over at GitHub to see if I can help. If possible I think the best thing would for the upstream project to package and release the snap directly. It looks like derailed had several different issues with the snap and I guess he lost interest.
@derailed I will give you a ping here as well. For me the only important thing is that the really awesome tool is available and easy to install, and of course I’m somewhat biased and like snaps 