> I'm not trying to excuse slow builds, but I'm frustrated that people basically always do benchmarks on laptops. Like, come on, if you're doing serious work, use a serious computer;

This reads as a dismissal. That you can only be a serious developer if you have a permanent setup where you sit down, and don't move from it.

Many devs are not just sitting at a desk or cubical writing code.

They may need to interact with clients, move between locations, even across cities. They may even be in the horrifying hot desk situation.

In all of those, working with a laptop makes sense.