Agreed -- containers are certainly being overused these days, I find a big indicator of when people know what they're talking about is when they mention/realize that docker is containerd these days (docker is simply a shim over containerd which uses runc underneath), but it is absolutely still very buzzword-y.

I think we've basically stumbled into a very effective and widespread packaging paradigm though -- now you don't even have to pick the right language/toolset to get static binaries easily -- just throw a container over the wall and your filesystem requirements (mounts), network requirements, etc will be made pretty obvious to the person doing the deployment