> While the nation is known abroad for minimalist lifestyles, their websites are oddly maximalist.
I’m not aware of this stereotype of Japanese minimalism. I guess there’s Marie Kondo, and some Japanese high-end dining tends towards minimalism. But then there’s manga, anime, kawaii, Nintendo, Sega, Miyazaki, etc., a lot of which is closer to maximalism than minimalism.
Do not forget the Tokugawa tomb in Nikko. ;-)
You also have wabi-sabi and all the other bits of Zen Buddhism we've imported.