To an extent, there's a limit for air travel, generally speaking as they can be dangerous. The m1/m2 are just killer in terms of lifetime and usage for general reading/browsing/email.. and still very long for even content viewing. Most people aren't rapidly draining their batteries, so the longevity gets to be a bit better overall.
AMD is getting pretty close and the perf:watt on the coming generation(s) for laptops (including integrated gpu) look to be really impressive to say the least...
They can also implement better battery management technology (cooling, charge rate curves, keeping the charge between 10%-90% instead of 0-100%, but reporting 0-100% to the user via scaling), etc, etc.
For a good counter-example, look at the early Nissan Leafs. They burned out their batteries in a matter of a few years, but battery replacements for other brands from that time are basically unheard of. (The inherent information asymmetry for new car purchasers is one reason Biden's IRA dictated minimum car battery warranties.)
Funny, I heard the total opposite about Nissan Leafs. The industry was guesstimating that batteries would last 8-10 years. The first Nissan Leafs (which was about the first commercially mass-available EV) had battery lives where something like 90% were still going strong and still 80% of original capacity left after 13 years.
Rather than the Leaf being problematic, it was the car that showed the market that worrying about the lifespan of EV batteries wasn't really necessary.
