Pretty much the same as everywhere else. There are good and bad spots at all locations. Disney wifi has gotten better and better over as time has gone along and the bad spots have been diminishing. During covid times, many people have been using it for remote working and virtual schooling with no issues. The wifi in your room will most likely be more than adequate, if not, it shouldn't be much of issue to find a quiet spot that'll work. In fact, my guess is, outside of the room, it'll be more difficult to find a quiet area than a bad wifi area.