I mean, the two games are very similar in design and scope.
Advanced tech and holographic displays.
Domestic Terrorism in New York
Taking on the enemy in the streets among civilians as an elite secretive group.
Having to make tough choices here and there.
Third Person Action
It honestly feels like Ubisoft, having scrapped R6 Patriots in favor of R6 Siege, decided to still pull some pieces together and bend other parts in order to start up a new Tom Clancy's franchise.
I mean, if you watch the trailers and gameplay of Patriots and see it compared to The Division... it kinda links up.
https://rainbowsix.fandom.com/wiki/Tom_Clancy's_Rainbow_6:_Patriots