Overnight layover city or no?

Transiting CDG from LIS 7:25P, depart to US 10:25AM next day Aug 23-24 2026 after multiple weeks in Spain and Portugal. So should (?) Have time to visit one of the close by towns (Louvres? recommended on a website I found) or venture into Paris proper for a nighttime Bateaux Mouche and/or dinner, then hotel. Thoughts?

We have been to Paris numerous times and have seen all the "regular" stuff, so considering just staying at the airport, but since we do have reasonable amount of time, maybe do something else.

If airport, which hotel is recommended?