While Google is no stranger to enshittification, I think Maps (and Contacts) are two services where it's just damn hard.

In particular it was developed in the western world from a startup, so the first approach probably was minimal and adapted to local streets, without even covering the edge cases.

Going from that to mapping every single address in the world is a huge leap and the underlying data system must be an incredible mess, also creating regressions on what used to be reliable.

I don't know if they got to it, but a few years ago you couldn't have vertical stacking (e.g. floors), shops with the same address needed workarounds to have a different entry.

Then some places have multiple addresses. The article talks about street numbers making sense, but in most places in the world they don't, disappear at random points, some countries don't have street names. We could talk about it years.