What use to be the PPA that allowed Ubuntu users to use native .deb packages for Firefox has recently changed to the same meta package that forces installation of Snap and the Firefox snap package.
I am having to remove the meta package, then re-uninstall the snap firefox, then re-uninstall Snap, then install pin the latest build I could get (firefox_116.0.3+build2-0ubuntu0.22.04.1~mt1_arm64.deb) to keep the native firefox build.
I'm so done with Ubuntu.
That's usage documentation. It doesn't describe how snap verifies packages.
The burden of proof lies with the program's docs to prove their security. In the absence of such documentation, we should all ageree to distrust it as insecure.
Apt clearly documents how the manifest file is cryptographically signed with PGP (and if that Sig or the signed hashes dont for any package it refuses to continue).