Maybe it's better now in some distros. Not sure about other distros, but I don't like Ubuntu's Snap package. Snap packages typically start slower, use more RAM, require sudo privileges to install, and run in an isolated environment only on systems with AppArmour. Snap also tends to slow things some at boot and shutdown. People report issues like theming mismatches, permissions/file-access friction. Firefox theming complaints are a common example. It's almost like running a docker container for each application. Flatpaks seem slightly better, but still a bandaid. Just nobody is going to fix the compatibility problems in Linux.