In the season 1 finale, Pike stops trying to run from his fate. In subsequent seasons, we've seen him get less and less screentime (the only notable thing he's done in season 4 is fail at negotiations twice for crying out loud!)
While it's very easy to see this as the writers of the show sidelining the captain to prioritize the rest of the cast, or that they for some reason feel Anson Mount does not deserve the screentime (which is a discussion for another time), I think there actually is an in-universe reason for this change in focus.
Pike knows his time is limited, and he knows how his story "ends" (he doesn't know about the return to Talos IV but that's not the point). The only time he's really allowed himself to feel things for himself is when he was around Batel. In season 4 we get hints to his feelings of grief, but they have not been fully dealt with yet, because I believe Pike refuses to see himself as worthy of the attention that would come with it.
Going back to season 2, in the Lower Decks crossover episode, Pike refuses to tell the crew about his birthday because of the painful memory associated with losing his father. I genuinely think he felt that his life wasn't notable enough for the crew to celebrate.
Last episode, Pike decided that he would be the one to electrocute himself to reactivate the ship's shields, intentionally leaving Uhura and Ortegas in charge of the bridge, and leading to growth for Scotty. He sidelined himself for their benefit.
I believe that Pike has decided the best thing he can do with whatever time he has left as captain of the Enterprise is to help his crew become the best version of themselves they can, even if he needs to sideline himself as captain. Especially after losing Batel and experiencing the life that he could never have in the finale of season 3, he has decided that the only thing left for him is to raise up those around him: Spock, Chapel, La'an, Scotty, Ortegas, and the rest.