Yes, it's Gnome Software. Discover = Gnome Software... the default app finder that comes with the OS once you install it. It's not like I've installed a different app searcher for some reason.
By the way. AFter fresh install I've installed GSConnect directly from extensions and it immediatelly shows up in the menu by default. The GSConnect from Discover store shows as not installed. Also nowhere in the Discover store it says it's an extensions.
They really need to make this more clear tbh, it's very confusing for people who never used it.
So got GSConnect to work... I had to also enable it in Extension manager for some reason. I had no idea it's an extension since I've just i stalled it as RPM package from the discover store.
Anyhow, it's just confusing. I was installing KDE Connect on both my PC and laptop. I never even heard of GSConnect until I started troubleshooting and I thought it's just some GNOME fork of KDE-Connect, not actually a mandatory replacement for KDE-Connect on GNOME.
It may make sense in the name but the name makes it even more confusing. Since it works on Android/Windows,... Why would I not assume it will work on Linux GNOME?
The irony is that doing that doesn't piss you off