Will the characters allow pictures for summer 2022?

Yes

Yes, but they are on a time limit so you will get turned away by a teenager if they're almost done with thier 20 minute window.

They come around about every 20 min. They do not stop to take pictures with you though. They take pictures of you and your family as you come in, with Goofy

Yes they do

If you mean when the characters come round as you eat, then yes they'll happily pose.