Lightroom cloud/"Share in gallery"... where is that Gallery?

In Lightroom cloud/web (lightroom.adobe.com) there are 2 options for sharing an Album: "Share in Gallery" and "Send to Portfolio".

I got how Portfolio works, but for the life of me, I can't find any information on what "Share in Gallery" does. I was hoping I could "share in gallery" and be able to see "My Gallery" somewhere. But I can't find where that elusive gallery is. Sounds a lot like the Portfolio, but then why have 2 separate options? Trying to see the difference (Portfolio vs. Gallery) to determine which one works best for me.

Anybody knows where the Gallery is? Any help much appreciated.

Thanks,

Razvan:-)