About Iphones? (Iphone 6, 6s, 7th)?

I would like to buy an iphone. But I have a question.

Is it possible to use the iphone as a Wi-Fi / wlan hotspot for laptops that are not from apple? So for example with a Windows laptop. Can I use the Iphone as a WLAN hotspot?

Yes, since the iPhone then sends a normal Wi-Fi signal.

That's fine

Why not? About WLan.

Incidentally, you can even charge older iPhones wirelessly, but you need a receiver,

https://www.handys-drahtlos.de/iphone-kabellos-laden/#Kann_ich_iPhone_7_iPhone_6_Co_kabellos_laden