After creating a fresh installation of Ubuntu 24.04, I installed DEB Firefox from APT by following Mozilla’s instructions from here. But I noticed that it was secretly replaced with Snap Firefox. I was able to verify this by checking the About Firefox page. This is the third time I noticed this.
You can get Gnome on Fedora. It won’t have Apt.
Packages will have a different naming scheme based on the maintainers’ preferences, even between Debian and Ubuntu (though those are usually pretty minor).
Your muscle memory is gonna trip you up for a while though.