All depends on the parks...We've been dropped off just past the bus area at EPCOT, closer to the parks than the bus. Dropped off right up front at AK, dropped off at same area as bus drop off at Studios and both at the MK parking area to take the boat over and at the Contemporary Resort and walked over. We are more likely to use a Uber to drop off, but the pick up at EPCOT is I believe in the same area.
Good luck, have fun!
As with all things Disney, my experience could be different from others AND things can change. We must recently used Uber at WDW in early Feb., 2021.