Did you even watch the video? iPhonedo tested with and without the instagram update as well as 17.0.3
Problem was Instagram, not iOS.
yea not a fan of the pastel-ish colors this year.
One piece of advise I can give; do not try to replicate your android experience on iOS. More than likely it will leave you frustrated. Make the switch with an open mind to a new way of doing things and you will have a much better time.
Know if there is an iOS version?
Yes, the 2nd gen pairs and charges while magnetically attached.