Ah yes, the one I ended up getting is the Thule Motion XT (XL). Which has a slide lock mechanism that people apparently really like. Due to covid I wasn't able to try any boxes (pickup only) but looking at that Force, that might be a better idea with the flatter middle part. Oh well.
It's currently sitting on the factory rails, and it works perfectly. It's the maximum size that still allows you to fully open the rear. As you can see
in this video this box is quite long. I might have to remove so many cross bars there is no point in getting a Prinsu or FrontRunner (or go with the Thule adaptor solution).
I'm tempted to just not bother with a roof rack, but they do look really cool, and I'm tempted to get an awning. And the FrontRunner table insert looks really helpful for camping as well.
Oh here is good video comparing the two boxes: