This is almost a non-event. There is nothing more expectable than that the first launches of a new vehicle will have problems. What will re-enter will be the upper stage + payload assembly. The first stage and boosters have already separated and re-entered. The trajectory track carefully avoids any settled areas. It will land in the drink.

(But I am not going to vet an 8-hour video on the subject. Sometimes the commentators don't know when to shut up.)