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.
Firefox now has instructions on their “Debian-based” install section about pinning their repo over Canonical’s so that doesn’t happen.
Because you’re right, Canonical does think so highly of their product that they will constantly attempt to undermine other options against your will.