You can only use one store, it will have missing stuff but you should be used with that if you only use Apple approved App Stores. Also if I want to buy a sub

You can only use one store, it will have missing stuff but you should be used with that if you only use Apple approved App Stores. Also if I want to buy a subscription for soemthing like Intellij as a developer I would feel like garbage to use a store and give a 30% cut to Microsoft or Apple for the privilege of allowing me to install something, the developers deserve those money and a big corporation because they host some files.