Not OP, but basically share that opinion.

Traditional laptops have their place, but I think most people would be better served by other form factors.

For instance a good amount of people use their laptops basically like a desktop and dock it to an external screen 90% of the time. For that specific use case, a tablet form factor will have better thermals, and lend itself better to have a separate and better keyboard and pointing device. The other 10% will still be a decent experience with either the detachable keyboard or straight bringing along an external keyboard if the work sequences are exepected to be long enough.

People more on the go but needing a powerful setup when needed now have access to devices that can expand the screen real estate beyond the 15" traditional limitation. Lenovo has been pushing the enveloppe on that front, and the build quality isn't bad either.

Gaming laptops are better served by Steam Deck/ROG Ally type of form factors etc.

The market is decently diversified and the form factors I'm describing are as far as I know selling better numbers than people clinging to Thinkpads and macbooks would expect.