does this work for suede boots?

Yes, it does work on suede. Start with a small amount of solution and clean the shoes with a soft wash cloth or be very gentle with the brush. It works on all shoe types, not just athletic shoes.

Is this good for patent leather?

Yes but you should have a soft brush so you don’t scratch the materials

Will it work on ultraboosts?

Yes the Shoe MGK shoe cleaner works on many different types of materials. My best suggestion with shoes that have a mesh fabric would be to scrub gently so as to not fray the threads on the shoes. Here are a few articles on the best process to clean a pair of ultraboosts using Shoe MGK products: https://shoemgk.com/how-to-clean-adidas-ultraboost-4-0-dna-shoes/ https://shoemgk.com/how-to-clean-adidas-ultraboost-21-cold-rdy-shoes/

Does this work on canvas vans ? I have had no luck with any of them so far it just makes them worse

I have used it on a pair of tennis shoes that is a canvas material. And it worked. Just clean the area and wipe off with wet cloth. But I dont know about vans.