I already calculated it actually.Jumbo had more like 140-150 effective armor in its ufp. It is reduced because of the well known phenoimenon when the two plates of the same thickness lose to a single plate of 100mm. Probably has to do with the fact that the shell gets to normalize on both of the sandwiched plates.
In war thunder 100mm jumbo UFP is slightly less effective then 80 mm panther's ufp.
In any way the 200 mm we have in game is hugely overmodeled. Instead of 20 it should be ~15.
It's about 90mm~ at a 47 degree angle, which against a 88mm APCBC or 75mm APCBC is in the 170mm mark.
Try using the entire formula, and keep in mind I've done the math on this at least 3 separate times, the only Shell(s) that the Jumbos UFP is 'effectively' 140-150mm is if, and only if, you are looking at the 85mm AP (non-Capped AP rounds) that the Russians had. But all of the AP rounds available to both the Tiger(s) and Panther(s) have Caps (minus the APCR but that's the worst possible shell to try and penetrate a Jumbos UFP with).
Warthunders formula's are garbage and should be discarded, use the equations directly from the WWII armor, ballistics and Gunnery Guide and it will serve you far more than WT (because lel, they are 18 types of wrong).
Furthermore, keep in mind the Panthers UFP is at a bit more of an angle than the Jumbo's is.