Since the pandemic started the Monorail at Disneyland has had reduced hours but for fans of the classic ride its now open daily until 11pm. The ride could still have interruptions for the fireworks but its good to see the monorail back to full service.
The monorail has two stations one in Tomorrowland in the park and another at Downtown Disney, which makes it useful if you want to take a break from Disneyland and eat at Downtown Disney. Just make sure you get stamped for re-entry to the park before leaving.