Have anyone seen UL Rank:2 deployed in fields?

Equipment Antennas
,
4

There are some Sony UE and Motorola Edge that support it!

As per cacombos site.

This supports 2 UL MIMO in N78 in NR.

UL rank 2
UL rank 21600×1085 128 KB

See this: Has anyone seen up to now UL MIMO in 5G?