Apparently Disney+ is presenting classic Disney cartoons, but is editing out sequences that could be problematic for today's younger viewers.
Twxttxr user @Ryan _Treasures notice that a scene in "Chips Ahoy" (1956) he saw on Disney+ differed from the one on his DVD. A moment when Donald Duck vexes Chip and Dale by blowing cigar smoke on them was removed.
I guess today you can't show someone smoking even if it's just for the purpose of harassing chipmunks.
The full cartoon, including the cigar smoke, is below.