To be fair, most of Japanese TV is like that. I always joke that the primary reason they developed HD TV was to be able to cram more text in every corner xD
But then again, take a stroll around a shop-laden street in Japan and you'll see the exact same thing. They just like it that way.
Funny thing is how for interior design they do a full 180 and typically go very minimalistic.
Only if they are well to do. Most family houses in Japan are crammed full of stuff with very little "design".
My God. Everything , everywhre, no design ( haha ), no exceptions. People were actually living there.
Had a cultural shock.
But the cities themselves are like that. There is zero urban planning, just buildings thrown around in impossible non-Euclidean patterns.
( btw, has anyone noticed in anime there are always frames of street cabling? Like those cylindrical transformes and thick cables. Almost cyberpunk! )