I'd rather not blow my battery budget on fighting the sun for visibility.

I tend to do outdoor things outdoors, so occasionally cranking up brightness is not an issue.

I'd much rather do that than to have a granier screen with worse viewing angles all the time I'm not in direct sunlight, so next time around I'll be back on glossy.

Yeah this m3 pro isn't really doing 1600 nits. Marginally brighter than my 2012.

To get to actual 1600 nits you need to use scripts.

https://github.com/SerjoschDuering/macbook_1600nits

Not sure the impacts to display health or battery running the screen full bore like this.

I use Lunar and have used it on my Pro Display XDR and every MBP with XDR I've owned with 0 issues.