No, the time for Biden to bow out has passed. Ballot deadlines have passed. Short of him actually dying, it would be impossible to get the replace,ent names on the ballots. Is the plan to have him retire in a year? Possibly, but the ballot is set.
Are you insane? Early voting has started in 8 states. The ballots are set in most states. Biden will NOT be dropping out. Did you not see potus’s tweet about Biden early voting?