Highly dependent on workload, using my older work laptop with 100Wh battery it lasted maybe ~40min if you put some real work on it. Browsing the web or managing tickets on Jira is completely different

>Macbooks are one of the heaviest laptops you can buy.

I don't think this is even close to true. My last laptop from 2020 weighed at ~2.6kg and it's 2025 counterpart is still at 2.1kg, while my work m1 mac is at 1.3kg

>. I think they are doing it for the premium feel - it is extremely sturdy

It's not merely a feel; I've succesfully thrown it to the pavement more than once from ~1.5 meters and it's continued working well, whereas none of my previous laptops have gotten away scot free before from even one drop

Apple does practice very hard repairability which I agree should be made much more accessible.