Yes both returnal and control 1 are portfolio fillers, though returnal has some of the best gameplay of any game. That's why I said a future control 2 would likely be a system seller, as it will have the improved graphics of alan wake 2 and the fast paced combat it's known for. While housemarque's arcade niche will continue to be a good portfolio fillerRumor was Remedy-Sony talks just didn't work out despite there being exploratory talks. Just a rumor of course.
Returnal is the AAA-lite in scope title folks want so much from Sony. Specially in the shooter genre which is undeserved by Sony first party - and, in this case, targeting the hardcore like Sony's partnerships with From/Team Ninja. It's a portfolio filler. Sort of like Helldivers, just different flavor.
Control is not a console seller, and more like a portfolio filler.