PiStorm is a (genius) hobby project by Amiga enthusiasts! It's not a commercial product and doesn't come with any warranty. Nevertheless its very popular and in various Amiga forums, social media and of course the dedicated Discord channel of the project has been often discussed that it doesn't support bus arbitration. Thus playing nice with other Zorro expansions is usually a no-no!
Having said that it has become so versatile and loaded with features (and it's developers are still adding more) that in reality if you use it you in your setup it will cover almost all of your hardware needs.