Having out of date public book boxes isn't really that big of a deal, at least compared to the massive amounts of broken entries, duplicates, and incorrectly licensed data that would end up from free and unrestricted bulk imports.

As it is today you can largely expect OSM POI data to be incomplete or out of date unless you have someone particularly keen on keeping your local area up to date. OSM is best used as a background map layer for your own custom applications, like embedded maps in apps showing your own data overlayed. Rather than an alternative to the google maps app.

I wouldn't use gmap as a benchmark for up to date POIs, at least in some European countries. And I'm not talking about inaccurate opening times; but about places that closed during Covid but are still on the map.