I see Fomapan ads all the time -- on photo supply sites (mainly Freestyle). Presumably, Freestyle has a higher margin on the Foma branded film than on the .EDU Ultra, or else part of their contract with Foma is to promote the Foma branded films. FWIW, Freestyle has had the Arista store brand for decades, with products coming and going under that label -- used to be Forte before they had Foma. Before Forte, I hear they repackaged Ilford for a while.
I don't see Fomapan advertised anywhere else, really, but then where else can you buy it? I still see 135-24 C-41 film, Kodak and Fuji brands, 100, 200, and 400 speed consumer stocks (generally not all at once, though), at drug stores, supermarkets, and places that have a counter or kiosk where you can order prints from your phone or a thumb drive -- but I don't see them advertised, either.