This is also why it's generally recommended to go with a classic air cooler that just has the fan speed set to the lowest level over passive air coolers in desktop PC-s. It's still quiet, but you get the cooling performance while using much fewer resources.
Data sheet TDPs seem to have less connection to reality with each generation.
But with all of the boost clocks and what not, the more heat you can disipate, the faster the chip will go, and the power usage/temperatures can ramp really quickly too. Fans are so effective in most situations, that it's hard to leave them off and accept the performance difference. Personally, I'm ok with most fans, although I had to replace the PSU fan in my most recent build cause the included one had a noise profile I couldn't stand. For things like NUCs and Desktops, running longer cables and hiding the noise source is probably a good option too.
- Copper is one of the most expensive materials, and it is hard enough, and have high melting temperature, so manufacturing also more expensive than from plastics.
When micro computers was inside 15W TDP this was not a problem, as heatsink was tiny, but for modern commodity designs, 25W+, need to use all surface of notebook as heatsink (at least one side of "shell"), this would be very expensive.
It's not perfect (headphone jack doesn't work), but been really happy so far. Probably the best $ per performance laptop I've ever purchased.
Edit: Just did a search of junction temps for 10th, 11th, and 12th gen i5s... all 100C.
But it's not just laptops that lose their fanlessness (which I appreciate both due to noise and reliability concerns), but also NUCs - almost every single NUC-like device that has entered the market and managed to come to my attention over the last months has had a fan installed. I wonder why that is - TDPs do not seem to have gone up, at least not when looking at data sheets... maybe it's just cheaper to make stuff that way.