Not to do the…It’s worse in China thing,
I find it to be a minor thing overall. Streets are pretty clean except for cig butts and toothpicks, littering in the countryside can be a problem for sure in places.
Fishermen are the worse culprits, they are disgusting (both anglers and professionals ),sort that out and we would see major improvements . The coast and harbour are often filthy . And the rivers…Let’s not talk about the water quality…!!
Taiwan has major environmental issues and littering is only a very small part of it.