I am not on the ground in Paris right now but am in almost daily communication via email with a friend who lives in Le Marais. I also, by way of background, want to add that I have taken just about every way to get to Paris from CDG except the city bus that goes to to Gare de l'Est and, at the best of times, Uber was not the best choice for getting from CDG to Paris for the very reason that the pickup location is not as simple as naming a spot. You have to check the app after you request the ride. And, these are not the best of times so per my friend in Paris, Uber is "impossible" right now. Surge pricing is real but since it depends on demand, it may or may not be factor. Even so, IMO, taxis are the way to go from the airport. You may have to wait a bit longer than usual for a taxi and traffic is bad but, it is a flat rate for the ride and not subject to surge pricing or any supplement/extra charge because of the strike so your price is your price.