You’re suggesting that a single daily image pull is somehow abusive and the cause for Docker Hub imposing limits. This argument is invalid because even after Docker Hub imposes it’s limits, pulling an image daily is well within those limits.

However, I am of the opinion that Portainer shouldn’t be downloading images unless the container is being deployed, if that’s actually what’s happening, we don’t know.

OP is doing nothing wrong, so please refrain from making illogical bad faith arguments.