On Ubuntu 18.04 I've changed my shell to fish via
chsh -s `which fish`
I've installed Maillspring and Visual Studio Code snap apps, they installed fine and could be launched from the dash initially, but after logging in and logging back out none of them showed up in the dash anymore.
Searching for them in software store shows that are installed and I can launch them from there.
Why will the default shell matter for this?