I am pretty sure that it is your browser that is the problem. Kbin does not have an app. it is simply going to put a link to the website on your home screen if you click that. Its considered a webapp and your browser is detecting that. It’ll basically be a link to the same site except without a navigation bar and it won’t save history iirc.
I work at a small business and we use it to write out dumb social media post. I hated doing it before. Sometimes I’ll write it myself still and ask chatgpt to add all the relevant emojis. I also think ai had the chance to be what we’ve always wanted from Alexa, assistant, and Siri. Deep system integration with the os will allow it to actually do what we want it to do with way less restrictions. Also, try using chatgpts voice recognition in the app. It blows the one built into your phone out of the water.