It is very common to use "generic Ubisoft open world game" to refer to any game regardless of developer that follows Ubisoft's open word formula of having an open world with ton of pointless random collectables, lots of icons in the world map for them, the world being separated in areas/regions you "conquer", kitchensink gameplay where everythings is thrown together with shooting, hunting, crafting, skill trees, quest markers/GPS, etc.

If that describes "most AAA games nowadays" that is because it does :-P. Ubisoft games were successful after all.

As an example this was the first hit when i searched for "generic ubisoft open game":

https://www.thegamer.com/best-ubisoft-games-open-world/