I don't know how Ryanair does it, but as a large Company with lots of destinations, an in-house hazard reporting system can turn into an Airport Briefing which is updated as required and kept with the plates/Jepps.
Then each pilot who goes infrequently to each destination has at least the latest hazard update which can help prevent some of these incidents particularly at the dodgy airports.
I would think that Ryanair has such a system in place.