how can I download pics from icloud to my PC computer?

With my Android phone, I quickly connect to my PC by USB cable and then able to download all my pictures from, Album, Whats App. Viber, etc.

Here this iPhone doesn't connect to PC and hard to download pics. I joined iCloud in my PC. Even this doesn't link to iCloud storage of the phone, so can't download. I Can't send bigger video file like from android phone to FaceBook Messenger. Lots of problem. There are lots video on YouTube to show how to connect phone to PC. Still not much of a help by going through their method.

Why iPhone is so complicated to use?