[demomode]

> What's even more insane is at the command line when you Tab to autocomplete the thing makes network requests and hangs! It's the only CLI app I know what requires the internet to autocomplete!

I'm pretty sure that it's a bash-completion feature / "fault".

No command is really executed while your are typing in a terminal until you press "enter".

[contrarian1234]

not entirely true. See: https://news.ycombinator.com/item?id=38302908

[demomode]

Well, technically is still bash who does the tab-completion, flatpak just provides a helper.

Try tab-completion under pure sh or powershell