I came into CDG on an Air France flight from Portugal today. Full flight - lots of families returning from vacation during the French school holidays. The flight attendants distribute a form for you to fill out with your contact details and collect it prior to arrival. At CDG, you pass through immigration even if it is a Schengen flight. No questions asked for European passports. A Japanese man next to me at immigration was asked about the purpose of his visit and he said he was flying on to Tokyo the following day and that was it - wasn't asked to show an onward ticket or anything. No medical screening or questions.

A very pleasant travel experience as indeed all my travel experiences have been during Covid - aside from onboard catering 😄