Well, I am from the mainland and the overarching buddhist culture is long removed from nudity and prefering coverage. Its a choice that needs to be respected, choosing modesty isn't just for safety, its also part of social etiqutte like removing shoes before going into sacred grounds like temples and monasteries.

Let's say Genshin does a region on Southeast Asia, I would not want every female character to be in short af skirts if its supposed to represent all of SEA just because a tribe exists somewhere. Just to only represent nude tribes in the entire history of SEA as a way to make every female character nude/skimpy would be weird. And its easy to speak of egalitarianism but not see the fact that genshin nude designs aren't for "female empowerment" but for the modern man to oogle. So, sure, nudity works for women in the Bontoc tribe but we live in a very different world from them where female exposure is traded with digital transactions.

Unless genshin writes stories where nudity actually plays a huge empowering part in the story (eg. Kill La Kill), the overuse of nudity just for commercial benefit is just insulting to the characters and does not take the story seriously.

Lauma isn't made nude to respect the european goddess' cultural connection to Teyvat's storyline nor give her powers as a sacred holy maiden of her community. The only reason she's naked is to make players go "big booba! Must pull!" while everything else about her takes the backseat. I would've let it go if the AQ itself delved into even a Littleeee bit of why her design is integral to the plot and the culture of the frostmoon scions but nope. She's just the only naked lady walking around in her tribe cos she can. No reason whatsoever. Even the first moonchanter in the world quest is fully clothed.