I think perhaps you’re living on a different planet from the rest of us if you think the entire Linux desktop ecosystem is a panacea of perfection, and this wart called “snap” is the only blight.
Wake up call time! There are bugs all over every application shipping by default in Ubuntu for years. Same for every distro. Let’s not sugar coat this.
There are some bugs in a non-default application on a non-LTS release of Ubuntu. We are working on fixing those bugs so users who arrive on the 20.04 LTS have less of a bad day than the adventurous types who ride the 6-monthly wave of non-LTS releases.
We have had some engineers working on this, there’s a thread started recently on the snap specific forum. I’m sorry to punt you over there, but that’s where the snapd and snapcraft engineers hang out. Apologies.
“debs by default” means engineering time has to be spent making the deb in order to deliver it in the distro. I have explained why the snap exists in some detail, frankly and honestly, on our blog. I apologise if you’ve seen it before. It does detail why.
It isn’t the same at all.
Tweak tool can render your desktop unusable, like black-screen-no-desktop unusable. Just by pressing a few buttons. Nobody needs that. Nobody wants to arrive at work on a Monday after fiddling around with settings on Friday and find they can’t do their job. That sucks.
A non-default browser on a non-LTS release, which is a bit slow to start sometimes and has some other bugs which we need to fix, isn’t in the same ballpark.
I hope I have found some for you.