> The whole Snap thing is a great example of why Linux will never become mainstream.

A generalization too broad, as pretty much no other distro except Ubuntu uses it. If anything, it's more emblematic of Canonical's neverending desire to reinvent the world and the NIH syndrome.

> Semi related, why are all the Remote Desktop solutions on Linux so awful?

I've never had any issues with plain old X forwarding over SSH. As long as you have compression enabled, performance for most applications is fine.