For me it's the other way around, haven't had any banners or anything on Android, whereas the desktop client has, and messages have been throwing 50x errors, while the mobile messages just seem to take ages to send.

The desktop app shows a yellow "DISCONNECTED - Check your network connection" warning. They probably should work on better error/status reporting in next version.

Desktop app is still behind the mobile in a few things but they are getting closer these days

Yeah I was very positively surprised to find that the desktop app has a large number of useful keyboard shortcuts: https://support.signal.org/hc/en-us/articles/360036517511-Si...

Thanks! They're listed in the menu of the desktop app as well: Help | Show Keyboard Shortcuts

Yeah, I'm using Android but not seeing a banner in the app.