Battery life is important, but does 6hr vs 9hr vs 16hr actually matter to you? Do you actually carry your laptop around all day without access to power outlets? If not, I don't see why that should be a factor.
Apple users do - 9hr is short enough that you’re going to want a charger for a full day’s work unless you’re certain you’re only going to do very untaxing activities. People get worried when they start approaching the low battery warning point.
The run time Apple’s ARM systems get is very noticeably better - I don’t even bother packing a charger even knowing that I’ll have a full development environment, containers, etc. running all day because I’ll still arrive home at 60%.
