Home hub iPad

when setting up a home hub this support site instructed me to go to a page in the Home app to update a secret update apparently and there is no prompt to update software. I am on the lastest iOS update 17 and updated the home app. there is a pop up that specifically does not include iPads as possible home hubs. This is incredibly frustrating as I have seen Apple published material, saying this is a feature. I purchased items to use specifically for this feature, having seen in multiple locations that this is something I can do and it is seemingly impossible to find any consistent method by which I can activate this Home hub with my iPad or whether or not is even a current feature. In addition to that, by the way, it is very hard for me to find any kind of comprehensive list of devices that can pair with the software and the software itself is split into like six different apps. What is going on there? Out Into the one app to connect a light that I need a second app in order to connect to the devices and I need the device app to connect to the site where I buy the products. It’s just insane.