Can someone explain the basics of the 2018 and 2019 infotainment options?

Android (Samsung Galaxy S9) phone user here, looking to buy either a new (but sitting on dealers lot for a while) 2018 Cayman GTS or a lightly used/low mileage 2018...and the mix of the various options, esp as it relates to an Android user, is very confusing. The local car that I am looking at (2018 Cayman GTS) has option 7UG (Nav) and QH1 Voice control. I know that there is also Porsche Connect and Connect Plus as well as CarPlay options. I'm not sure what can be added or enabled post manufacturing. What I know is this, please correct and/or expand on this if you can:

Porsche doesn't support Android Auto (maybe in the future), therefore no display on the main nav screen or small instrument panel when driving..ie. maps/nav.

You can do the above with an Apple phone and the optional CarPlay option. But must be connected via USB cable, not BT.

I can connect my Android phone via BT for handsfree calls.

Connect offers more built in apps as well as apps on your phone, but there are differences with Apple vs. Android features.

Connect Plus adds an LTE hotspot to the car for both general wi-fi use, but also drives some added data connectivity for built in functions, but not clear what those are.

I'm getting close to moving to a short list of cars across the nation I want to make offers on and want to narrow it down using must have vs. nice to have options and the connectivity concerns me as this is a car I expect to have for a long time. I might be willing to change to Apple phone, but that still doesn't fix things if certain options are not on car and/or can't be added. I'm also aware of the SDK Auto box that can be added and that might work too, but want to understand the basics from Porsche first. Please direct me to other sources if this has already been asked/explained.