That’s actually how World Hertitage designation started. After they moved the Nubian monuments to the new location, UNESCO figured out, we should have a list of the most important monuments the World should save wathever it takes, they named them World Heritage Sites. And that is the reason natural things were not allowed to get that designation for a long time, originally it wasn’t its goal.
https://en.wikipedia.org/wiki/International_Campaign_to_Save_the_Monuments_of_Nubia
Early iOs and Android icons were one of the last offshoot of the style called “Frutiger Aero”
Flat icons don’t necessarily bad and undetailed, it’s just harder to create something more recogniseable with less tools, but I actually like the order, that they look like they are related to each other. Back in the day I created icon packs for the programs I used on pc, so my desktop would look clean and uniform.
Design styles are in a cycle, just wait some years and they will show up again, I’m sure. There is already some connection with the new style of windows 11.