Automatically launching on startup, Linux Flatpak

Heya! I'm using the Linux Flatpak, and it seems to be automatically launching on startup, or tryng to at least (I get crash reports about it). I went into the app to try to disable it, and the setting doesn't seem to be there anymore. I tried in the DE's startup apps (on Gnome 44, using Gnome Tweaks), but it's not listed there.

My only guess is that Zoom added a dbus/systemd message, and I can't seem to find it. Any help is appreciated.