This is so sad, that poor baby.
I've noticed that there are more dogs everywhere, especially since the lockdowns. And many are not very well trained. A few times dogs have run up to my children, who are quite nervous of fast unpredictable dogs, and preceded to chase them as they've then run over to me. Most times the owners have no recall ability and have to physically come over to grab their dogs. That is not ok in my opinion! People don't even say sorry, just look at my kids like they are silly! I've also had dogs jump up to lick or sniff my toddler who is strapped into a buggy, which is terrifying for him. He can't get away! And again owners can't seem to call their dog away. It really annoys me, especially when they say 'oh he/she is friendly! They are very good with kids', well maybe my tiny kid doesn't want your massive dog running at them or licking them! And I say this as someone who likes (well trained) dogs.