No.
Go back and check which iPhone chip launched when and what chips Macs got after that. It's a fact that iPhone always leads the jump to a new chip generation, not a discussion.
This has been Apple's business strategy every since iPhone took off.
But also consider Apple's total revenue throughout the years:
View attachment 2206027
What's the headline? iPhone is Apple's most important product by far. Macs are far behind. It's not even a competition.
Additionally, the second largest chunk of Apple's revenue is "Services", aka all the billions of apps and inn-app purchases that all the hundreds of millions (billions?) of iPhone owners make every day using iPhones.
Macs don't hold enough shares of the desktop/laptop market(s) nor generate enough revenue (indirectly) in the Services category to be Apple's first priority.
iPhones do, however, and that's why Apple has consistently put most of its efforts and capital towards ensuring that every iPhone launch is a resounding success.
3nm comes to iPhone first.