i'm convinced windows laptops have negative battery capacity. in all my years of being exposed to tons of different windows laptops, i've yet to have a single one that holds a charge for more than a few hours. not a single one could last a day of use. i've used chromebooks that have lasted me weeks on a single charge. the only place i'm using windows is on a desktop so i don't have the thing die on me after having affinity designer open for more than 5 minutes.
also before someone else says it, I'm sure macbooks have great battery life, i haven't had a proper try of the new apple silicon ones but from what everyone says they have amazing battery life. also yes, I've found some linux distros can also help windows laptops because they use less resources than your average windows install.
when Apple actually cares about it they do really good stuff, which is what happened with apple silicon