Stream unable to have a stable resolution for a game between lobby menu and in-game

[NoFaceX]

Hello guys. So I've been trying to stream a game and I kept trying to make the resolution work but it didn't. Either the resolution in the main lobby appear too large or too small and the in-game is vice versa. Streamlabs can't capture both at the same time same resolution. I have to do "Stretch to screen" manually every time i switch between the 2 and that is so bad. Especially for streaming.

So it comes down to either stretching the lobby menu and screwing up the in-game resolution or vice versa.

Anyone know a turn around out of this issue?

The only resolution where both lobby menu and in-game match is when I put Display mode for the game to "Normal 4:3" "1024x768"

Is there a way to make Streamlabs automatically stretch to screen of both main lobby and in-game instead of me doing it manually?

Thank you
My Streamlabs base(canvas) and output(scaled) are on 1920x1080