Yep. GoT is the most successful Sucker Punch game ever, Horizon is the most successful Guerrilla game ever, Spider-Man is the most successful Insomniac game ever, GoW 2018 reboot is the most successful SSM game ever, Days Gone was also the most successful Bend Studio game ever, Detroit the most successful Quantic Dream ever, Returnal is the most successful Housemarque game ever and Death Stranding is on track to become the best selling Kojima game ever.
I think this generation we'll see this from Firesprite (their top staff are mostly former SCE Liverpool, Evolution Studios and Bizarre Creations people), Pixel Opus (they are growing with each game and now are partnering with Sony Pictures Animations for a game) and Team Asobi (previously known as Japan Studio), and who knows if Bluepoint too if their move to create original content isn't only dlcs or sequels. And who knows if with Cory's new IP at SSM's, but seems very difficult because GoW is too big.