Why do Linux nerds that care about this sort of stuff hate snaps so much?

Is it the concept of snaps / flatpaks that is the issue or snaps specifically because Canonical is behind them?

I know literally nothing about how they work except I installed the VLC snap and it's fine.

I couldn't install Parsec (a remote desktop game streaming app) because of a missing dependency (an old version of lib-something codec that wasn't in my newer version of Ubuntu). I spent like an hour trying to figure out how to take the 18.04 version and add it to 22.10. I don't know Linux at all so I wasn't making much progress. Someone, not the developers of Parsec, made a flatpak and it magically worked.

I was afraid that because the flatpak was made by some random guy I couldn't really trust it. I looked inside the flatpak and it's seems to be nothing except for the Parsec deb coming straight from the official Parsec URL and that libcodec thing that was causing a problem.

So from my perspective, not knowing the technical details or politics, what's the problem?

This is why im on the hunt for a new distro. Looking at pop and fedora right now. Kinda prefer deb cause thats been my env for 15 yrs

I've been using more and more flatpaks lately on arch and fedora based distros, i have no idea how snaps compare but seems similar? Seems an odd push from Ubuntu, but could make more sense than deb packages for non techy users perhaps?