I have yet to find a portable windows machine that doesn’t throttle performance on battery. Weird that no reviewers ever mention it but Macs have nearly no performance difference and they plugged in vs on battery and that’s a huge reason I don’t trust using any Windows laptops on the move.
That is a Mac user thing anyway. For some reason Mac users seems to have a boner for a computer that can work everywhere, especially in place where it makes everything more complicated and painful no matter the battery life. Well at least that is what they tell you; in large part thanks to the marketing.
In practice I have rarely seen this sort of "advantage" really taken care of. For the most part people use their laptops for watching videos and doing simple office like task when they are on-the-go without a desk and power source.
It's quite funny because it was already one of the major arguments of Mac laptops back in the 2000s when I bought my first one.
I have done tech support for full Mac companies and countless of people with various jobs position and it simply doesn't reflect how the vast majority of people use their laptop.
It's a lot like the capability of SUV/luxury 4x4 to go in accidented terrain. That's nice marketing feature but barely 1% of the buyers actually use it.