There is no alternative to the M1 for any manufacturer. This is the point you seem to miss.
"It's an ARM, it can be done", etc is the gist of your narrative, but no one else succeeded. What has resisted the move to ARM, given the issues with x986-64 offerings, is SW compatibility and emulation performance - something Apple's competitor's could not address successfully despite trying (see Windows on ARM).
You're saying that Intel doesn't do enough, but you don't appreciate that at this power/performance combination, there is no alternative anywhere. It is addressing your very point "my 2020 MacBook Pro is not much faster than its 2016 predecessor." every other laptop manufacturer has to sell a heavier, slower flagship machine. Neither AMD nor Intel address this.
Many tried to grab the opportunity and have for years.
Of all the ARM architectural licensees, Qualcomm tried (Krait,etc), use Cortex integration now and trying again with Nuvia, Samsung tried with Exynos, gave up and decided to go back to Cortex integration, Nvidia had, back to Cortex integration.
One company did their own architecture, and has succeeded - but only one - Apple. And it is the fastest ARM processor, faster that ARM engineers own Cortex designs. (I am not including special purpose and lmited release designs.
>> Intel's CEO had to go because the process engineers have failed to keep up with TSMC and Samsung.
You don't need a new CEO to fix process engineers, they could have used TSMC. Their issues run very much deeper. They've lost very significant engineers. Go watch videos from ex-Intel principal engineers discussing the significance of Apple. https://www.youtube.com/watch?v=JImi0Vnjvfw for eg
>> Qualcomm has been wanting to get into the data centre market for years.
No they exited the data centre market. Read their own press release - https://www.qualcomm.com/news/releases/2021/01/13/qualcomm-acquire-nuvia https://www.theregister.com/2021/03/16/qualcomm_closes_nuvia_announces_chipset/
You call me a fanboi, but ignore the fact that no competitor is offerng anything similar, despite attempts.
And you're playing this down as "not a big deal". Apple still have an ace up their sleep to offer higher TDP.
It's one thing to do something impressive, it's something else to do it right, for the consumer market, and despite other's trying.
When the wright brothers flew, you're probably the person who smirked "well it doesn't get you very far"