ORD Terminal 5 Lounges Data Point

Providing a data point from my recent experience at ORD. I had a domestic connection at ORD on UA and wanted to use the Air France PP lounge at T5. To get to T5 you must exit the secure terminal and redo security at T5. The person at the entrance of the T5 security line saw my boarding pass and said United does not fly through here and I said I know I just want to use the lounge and she let me through. At the TSA ID check point they just checked my ID like usual and let me through. At the Air France Lounge, I had to wait 20 min before I could get in even though the Air France flight departed a few minutes prior. Also, they said the showers close after 6:30 pm which I think they are just making up rules at this point and the food was a little bit limited since the Air France flight departed but it was only 6:15 pm (I'm gonna give feedback to priority pass in case they are violating their agreement with PP). Anyway while going back I was able to use the special airside bus to transfer back to the domestic United terminal without redoing security. They are very strict with that internal bus and they do indeed check and double check my boarding pass for the departing flight along with my ID to make sure my name matches. You need at least 2 hours to transfer lounges (2 hours after arriving at the gate to boarding time for the next flight, not 2 hr connection) to do this comfortably and even the internal bus transfer is not short and easy and does takes time.