Actual debates only help the challenger to the incumbent. If Joe Biden is too incompetent to come face to face with President Trump, or will show very badly in any event, this becomes a forfeit. While not exactly a win, it is not a loss either.
One is reminded of a sweating and visibly ill Richard Nixon facing a fresh and exuberant John F. Kennedy. On points of debate, Nixon won the arguments presented, but lost on the overall scoring by the American public, and the media.
I hope Biden wears a mask and Trump doesn’t