Hello, all! I'm having a difficult time figuring out a few PP items at CDG airport in Paris. Any help is appreciated.

1. We're flying in (via premium economy UA) and connecting out (via economy AF) of Terminal 2 but wondering if we're able to go to Terminal 1 for Star Alliance lounge access to shower. It appears the PP allows access to this lounge but it states the Business Lounge only. Not sure if that includes showers or not. Any experience with that as well as going to a terminal one is not flying out of?
2. There are a lot of Air France lounges in Terminal 2 but I cannot find out if any allow access via PP. Looks like most have showers, though, so that might me a better option than Terminal 1 anyway. Does anyone have experience with this?