Yeah swipping between screens or forward backward in the browser up and down the browser page, used to be 4 fingers up to mission control and I can’t remember all of them. It really did make movement pretty fluid. Now they do a thing that I believe is only integrated to Apple apps where if you are signed into your Apple account you can continue between devices fairly simply. Like if you have an email/texg open on the iPhone and walk up to your Mac an icon appears on the dock far right with a phone symbol, you tap it and it opens the mail/messages/safari app to where you were and wrap what you were doing. I believe it does the opposite as well by opening the phone, going to app switcher and the active app on the Mac will be an option to continue on the iPhone