Yeah you get 40 nominations of Places Of Interest (POI) at level 38 that The Community will review and possibly convert to a WAYSTOP. But whether that appears in PoGo or in other Niantic games depends on its location in relation to existing stops.
Niantic explanation:
https://niantic.helpshift.com/hc/en/6-pokemon-go/faq/41-submitting-a-pokestop-nomination/I use
http://pogomap.info with Cell Levels 17 & 14 visible. This is a grid that breaks the map down into cells. Each cell can only have on Pokémon POI, so if there is a phone box with a map right next to it there’s no point in nominating one if the other is already in-game. Does that make sense? I know there are whole blog posts breaking it down further but i cans find a decent one right now.
Since turning lv38 I have had 18 approved! Also if there is a lonely pokestop and you can put another one nearby (not too near) you are likely to convert the first into a gym. Again, there are ‘rules’ for this. But I won’t try and type that right now!
The process of nomination, review and then either accepting or rejection can really get to you! But I think I would have gotten bored of it again by now if I didn’t have this to work on as well.