I see that too, and I've installed an MSI 1050ti to test out and it fit fine, dual slot same dimensions as 2060 specs, all say 1.54"/39mm dual slot but reading these Amazon questions:
Q: My gabinet has only 2 slots expansion, nzxt h200i. as i could see this board is 2.75 slot. will it fit in the gabinet?
A: If you only have 2-slots available for your case then the RTX 2060 SC GAMING will not be able to fit.
By
EVGA Support on June 25, 2019
Q: how do i know if it’ll fit my pci slot like the part where the hdmi goes it looks pretty big compared to the one i have now
A: It will take up three slots of your pci ,I had to break off two pci slots cover,the thin metal plates
By
LongJohnX on December 20, 2019
Q: Can you convert it into a two slot?
A: No
So yeah, I'm confused. Here's the MSI 1050ti dual slot:
It does appear to be the same as your pic of the 2060, so wonder what's going on?