No, I have tried the thermal pad method though and saw marked improvement - fan rarely if ever turns on (I have the i5 version). It only cost me about $5-6 and is super easy to install. If you ever try the thermal paste let us know!
https://forums.macrumors.com/threads/macbook-air-2020-thermal-pad-great-results.2237367/
https://www.amazon.com/ARCTIC-Thermal-Efficient-Conductivity-Handling/dp/B00UYTTMNI/ref=sr_1_2?dchild=1&keywords=arctic+thermal+pad&qid=1596150691&sr=8-2