It's suspicious that your account created 1 day ago and you say there are more powerful and more battery efficient offers available but don't give an example.
P.S. writing to you from a six year old ThinkPad running Linux. I'm not an Apple fanboy. It is my opinion that Apple's products are leagues ahead of the rest of the industry and it's not even close: performance, efficiency, and build quality are incredible.
The Apple ARM laptops are just on an arbitrary point belong the power/efficiency scale.
If it happens to match your needs: great
But it's not like it's ahead of the industry in any way ^^