I use Intel XTU to undervolt the 9300H, and disabled the Turbo Boost Short Power Max (the 75W one) as I've noticed that it makes the temperatures spike and vary rather inconsistently, affecting performance.

I've found that it greatly helps lower the temperature by a considerable amount. I do, however, also have small feet under the base of the laptop to raise it slightly to allow more air to come in. HWmonitor shows more consistent results, as it rarely shows the CPU going above 90. Question is, whenever I start to game (Apex, CSGO, etc.), the clock speed stays at its base clock of 2.4GHz, with a cool ~65 degrees on average, but weirdly maxing out to low ~90s sometimes (I think this is a bug?). I've had a successful undervolt of -120mV stable, with temp maxing out at ~85 degrees on Small FFTs, disabled AVX2 + AVX on Prime95, averaging at around ~77 degrees and the clock speed hovering at around 3.0-3.8 GHz. It was between that or the Y530 with a 10H, with the 元40 being sold for less the price. It's specced with the i5-9300H, 8GB RAM, and a GTX 1650 in it. I've had my 元40 for three months now already, and am absolutely loving it.

Intel xtu i5 9300h