Polly-0 cheeses

Is the Polly-0 Ricotta, string cheese and mozzarella ok for Passover?20190412_142836
20190412_142821 20190412_142803

I believe they have an OU.
In regards to Pesach they are Kosher for Pesach for all

Is vinegar a potential chametz or kitniös concern?

Not a problem

I guess if the vinegar is made from corn, since it’s derivative and not actual corn, R’ Abadi and some others are lenient?

Kitniyot less than 50% is ok for all unless there’s actual peices of kitniyot.