What desktop setup would you recommend?
When you say throttle you mean not the full graphics processing?
Firstly, when a laptop gets hot, the GPU and CPU will slow down until the temperatures get into the more reasonable range. It shouldn't be an issue if you have a proper gaming laptop and you use it on a desk. Unless it uses the new Intel CPUs.
Previously, if I had to buy a gaming laptop, the Asus would have been it. After that video, and Asus' warranty issues, I wouldn't touch Asus. Look at Gamer's Nexus' youtube coverage.
Keep in mind that a laptop RTX 4060 is not a desktop RTX 4060. I don't know how accurate this is, but it seems a mobile 4080 is slower than a 4060Ti desktop:
NVIDIA RTX 4060 vs RTX 4080 Mobile: technical specs, games and benchmarks.
technical.city
UserBenchmark is crap and can't be trusted (especially wrt AMD), but it's one of the few sources that compares gaming vs desktop parts. That is because it really makes no sense. There is no comparison.
Same with CPUs. Laptop CPUs are slow as hell compared to desktop.
Laptop gaming will see you playing on a 16" or 15" screen, unless you buy a separate monitor, like with a desktop. Same with keyboard. Same with mouse.
I have a work laptop with a 3060 that I installed some games on. I used it to game maybe twice. The only benefit it has is if you travel frequently and will end up being where there's a desk with power nearby. How often do you game away from your desk?
If you want mobile gaming, Steam Deck is where it's at, but that's another story.