Those are snaps. I don’t use those on my server. AFAIK, they’re mostly used for GUI applications. I don’t even have a GUI on my server. I wouldn’t even know how to install or run a snap from command line.
Most things that run in my server are containerized services that I wrote personally. So as long as there isn’t a vulnerability in podman or my reverse proxy, and as long as keep my base containers up to date (they pull the latest base image each time the image is built), I’m mostly fine.