They just had an episode covering that issue on Dogs in the City last night, with Hubbell Yoda, a blind foo-foo dog she pushed around in a stroller. She learned that if you give dogs a chance to just sniff each other, they work things out amicably.
They’d coexisted peacefully for the duration this was at the very end. Megan is not that way with maxwell the yorkie poo but the BIL turns his purse dogs into absolutely unsocialized freaks! They told us at puppy k that there’s a window early on where you need to expose puppies to diff people and other dogs.