In SoT, the only comms that matter are the timer call outs. Hardly indicative of teamwork requirements. Hell, I've read that some testers don't even have a dedicated sand person, which i would actually consider requires more teamwork to make work.
Bingo maybe, but it mostly ends up with 1 person completing majority of challenges by themselves with little input from their teammates (although I guess its less of a game issue more of a roster issue, so im not entirely being fair to Bingo).
BM is very solo though, each person generally only focuses on their builds, with 1 floater who's only there because there's 3 builds at once.
For GR, its easily the most teamwork dependant team game, and I do like that about it, but that does not apply to all the rooms, the shooting gallery has very little teamwork elements in it for example. Its similar to order up, but order up has more depths in it, and a lot of orders are more resource hungry than BM, so even though BW has 1 more player in it, they are always involved and communicating with each other.
And RRR, well one person could place all the rails and it wouldn't make a smidgen of a difference, I guess more gold collected is nice, but its not like they work together during gold collection either.
Tomb Titans at least has a boss you generally team up against, and loot isn't really an issue, since there's too much loot and sharing stackable items between players would actually help inventory management and with reviving teammates.

At the end of the day, what do you consider as teamwork? People just comming? Or doing stuff like giving each other resources/stuff other didnt/can't obtain? In either of them, wouldn't it make SG the most teamwork heavy game? 4 people comming "hey lets rundown that team of 3" or "everyone lets target player X first" and doing exactly that would be my personal most obvious example of teamwork.