I am using Zeiss Classic 21, 25/2, 25/2.8, 28/2, 35/2, 50/1.4, 50/2, 85/1.4 and 100/2 on Nikon D750 and Z7. Mostly a set of 21, 35 and 100 when travelling. They are still great and much lighter then Milvus and Otus!
I am thinking about getting a Fuji X with the Touits for a lighter and smaller...