It sounds overly complicated to me, but I honestly don’t know much about it. Do you have a good resource for what value it brings vs other options?
Personally, I just use containers on a single host. Right now that’s openSUSE Leap, but I’m thinking of switching to microOS for an immutable base system, which I think has value. This makes it really easy to move services between machines (just copy the compose file and whatever config/data volumes it has), e.g. if I decide to move a service to a dedicated machine (e.g. an ARM SBC).