Parameters affecting high-speed PCB transmission line design
The difference is the H value. 60 mil is 1.524 mm, which suggests you are using a standard 2 layer board. For high speed interfaces like the ones you mention, you should use a 4 layer board. That way the reference plane is much closer, so your H value will be smaller. Here's JLC's standard 4 layer dimensions:

And here's their 2 layer:

In the 4 layer stack, the Prepreg value corresponds to H in your software. In the 2 layer stack, the Core value corresponds to H. Try experimenting with the values there, and you'll come closer to the values you've observed on the CM4 carrier board.