On extremely heavy workloads the fans do engage on my M1 Max, but I need to get my ear close to the machine to hear them.
Recently my friend bought a laptop with Intel Ultra 9 185h. It roared fans even when opening Word. That was extraordinary and if it was me making the purchase I would have sent it back straight away.
My friend did fiddle a lot with settings, had to update BIOS and eventually the fan situation was somewhat contained, but man I am never going to buy Intel / AMD laptop. You don't know how annoying fan noise is until you get a laptop that is fast and doesn't make any noise. With Intel is like having a drill pointed to your head that can goes off at any moment and let's not mention phantom fan noise, where it gets imprinted in your head that your brain makes you think the fans are on, but they are not.
Apple has achieved something extraordinary. I don't like MacOS, but I am getting used to it. I hope one day this Asahi effort will let us replace it.