It’ll be close. Should be okay if the plane is on time. Get your bag downstairs and the local bus picks up at the doors of the terminal. The 62 bus seems to take 17 minutes now at 7 PM on Sunday to go from the airport terminal to Newark Penn. Most of the Greyhound and other long distance buses are at Newark Penn by the taxi plaza. It doesn’t give much wiggle room for waiting for the transit bus, late flights, or traffic so plan a backup. A waiting taxi would be faster than Uber