Quite a few of the 130 rated ones have a performance mode in the control panel that allows them to be run at 140 as well (just not guaranteed it will run at that).
I disagree, I have the MSI RTX 3070 laptop 140w, it is a good laptop, it's one of the best and most powerful laptops of the bunch, yet, it's definitely no where 20% of desktop performance! No were as good as a desktop version, keep dreaming.
It can't run Cyberpunk2077 in 4K. My cousin even has the RTX 3080 laptop and we laugh about how rubbish the performance is compared to my desktop 3080.
You see, regarding the performance, a 3080 desktop will run 4K, 60fps plus on max settings all day long in Cyberpunk2077, Anthem , AAA titles etc... you can even get 4K 120fps/120Hz in tons of games like COD,Battlefield...
A laptop 3080 cannot even cope with 4K games I mentioned and will choke and stutter , also they run so hot, their CPU temps get to 95c when gaming, they have poor cooling . On a desktop, you can have the CPU running at 65c max.
These mobile 3 series laptops can't even power 4k panels, so 99% have 1080p panels for that reason.