The Ford guys are constantly whining about their 10 speeds. It’s all in the programming.
Not sure I’ve seen the first complaint about the 10 speed in a GM, very minimal if any.
Who knows how they program and calculate the shift points, the 10 speed in my Denali is seemless in shift points and duration.
I have owned a few ZF8sp and to this day it is the best transmission I have ever driven, in fact, my DD is a Ram.
The 10sp in our Yukon is pretty darn good and I have no complaints, but the ZF still has better programming and shift quality.
Where the ZF really shines, downshifting! It is so instant, never have I seen a trans perform like that. The GM 10sp is a bit lazy in downshifting, but much better than the 2016 GMC 8sp I had(goodness that was the worst trans)
It’s definitely better than the 6 speed I had on my 2012 avalanche and 2015 Tahoe.
If it's just a programming/tuning issue, then it should be relatively easy to fix/improve.
It should be able to be perfected (based on hardware limitations) within 1-2 years.