Adding a business to Mapy, doesn’t add it to OSM. The other way around it usually does (usually with a lag of a few days to weeks)

Reviews and pictures can be added in Mapy (https://mapy.com/), an OSM based map provider from Czech Republic. Quite useful as an alternative for google maps imho. Has pics, reviews, favourite lists, etc.

For updating / checking shops, companies, etc, the Every Door app is useful too.

Also Go Map!! for map improvements in general.

(All of them OpenStreetMap)