Quick hack (if some interested I could make a detailed post ) when you get to ORY3 and facing the ludicrously long security lines .
To me those are the worst of all CDG/ORY current setup (not famillar with all, but out of ORY3/ORY4/CDG2E/2F/2G) with the "queue after the queue" line to get your bag picked by some algorithm, forcing you to wait for the next avail agent to open it and confirm that yes indeed your bag is featuring a battery pack which you were instructed to leave in the bag seconds later by the aforementionned agent...
Well anyway, if the line is too long or you forget to pay the 7€ toll, you can head to ORY4. Indeed, the airside of ORY4&3 are connected and boarding pass of ORY3 are validated by automated scan at ORY4 "niche" entry point, next the Carrefour Entrance. This security check is supposed to be avail for flying crew & passengers with specific needs ...and always empty when I checked them over the last 12 months. Bonus point: you get to forgo the whole shopping mall and get straight to the concourse.