How to *not* launch Big Picture Mode?

I was using Apollo until I noticed it hadn't had an update in a bit, so I looked around and found Vibeshine (I'd use Vibepollo but the dev said Vibeshine is more stable). Seems to work fine, but every single time I launch a game on my Steam Deck (using MoonDeck) it also launches Big Picture Mode on my PC. I have zero use for it, is there a way to disable it from launching BPM at all and just launching the game I select? I swear when I was using Apollo it didn't do this. If it isn't possible, is there a way to close BPM after automatically? Thanks for any help.