What concerns exist regarding Pope Francis's upcoming religious schedule due to his health condition?

Pope Francis's hospitalization with pneumonia in both lungs, alongside bronchitis and a polymicrobial infection, has raised concerns about his ability to fulfill his upcoming religious duties. His immediate schedule includes the Sunday Angelus prayer, which he has previously delivered from hospital when ill. More significantly, in two weeks the Catholic Church begins the important season of Lent with Ash Wednesday on March 5th, followed by six weeks of penance leading into Holy Week. Given the 88-year-old pontiff's health condition, questions remain about his capacity to preside over these major Catholic observances and the Jubilee celebrations.