The opposite. NOTHING. Nothing was going on with the 2070-2080s. Other than the higher power use and higher thermals (due to power) the performance gain has been very incremental with the Max-Q implementation. (Max-Q is like desktop-grade chip but slightly toned down, less performance than the desktop counterpart. 5-10% perf. hit) Hence not a lot of purchasers and/or manufacturers prefer them in their laptops.

So far, only 2060 has been actually viable both performance and thermal/power-wise.

Honestly, I don't recommend buying gaming laptops to anyone :)