Gboard Keyboard Not Showing Up in Various Google Apps on iPhone Xr
I'm having the same issue and like you I've tried everything from reinstalling to trying different custom keyboards. Only the default keyboard and emoji keyboards work in the google apps like gmail, hangout, meet etc. I can't find a lot of people complaining about the issue online so I figured it might be because this is a company device and some permission is blocking it? The custom keyboards work in all other apps so gboard not working with google apps is just baffling.