Ctrl+G taking over the current tab is not what I expect.
If I don't want it to take over the current tab, then I would have to open a new tab first, but a new tab is not scoped to a service, so Ctrl+G won't be available in it.

I know I can navigate backwards in the tab to get back to the view that I was already in. Now, that I'm thinking it through thoroughly. But when normally using ripcord, I am never back-navigating. So from my point of view, Ctrl+G erases the view that I'm in, so that I have to go recover it by navigating through the tree view.

Note, I can open new tabs by middle clicking but there is no way to get to a friends list without picking something in the discord universe arbitrarily, and then letting it take over that window. It's awkward. 

Analogs to this situation:

* firefox's ctrl+shift+A to open a new tab at addons manager

* chrome's ctrl+shift+del to open a new tab at settings and pop open Clear browsing data

* several more in chrome (help menu stuff, although note, in this case it's a bit odd as it takes over any existing settings tab)

I couldn't find an outright counterexample to my proposition.

I believe ctrl+g and ctrl+@ (as well as the menu options) should open new tabs.