Can't find the "homepage" in UpFront

I built this website project in UpFront.
Now I wanted to add data in Yoast SEO, but I can't edit the "homepage".
If I go on pages, there are 17 page elements created...

I am new with this, and I don't understand:
is this supposed to be this way? Is the homepage in Fixer no real "page" within WordPress?
Where can I add Yoast SEO data for the Homepage?

Thx for your help! (I also granted access to the site)