Yes and no. It depends on the time of day you’re riding at as well as where you’re going to and from. Trains run a lot more often daytime and weekdays than on weekends and at night. Some neighborhoods have a lot of train options that come frequently and some only have one option and you might have to wait 20 mins for it 🤷♀️
You could plan to minimize Ubers by ubering at night and taking the train by day? Or checking how long something takes by car vs subway and going from there