How to share iPhone screen to Mac?

Back in the day I was using this trick: https://medium.com/mac-os-x/how-to-mirror-your-smart-phone-screen-in-mac-os-x-2daf018aae4d

1. Launch Quick Time Player in your Mac.
2. Select New Movie Recording under File Menu (⌘+⌥ + N)
3. In the popup window select the down arrow
   near record button.
4. Choose the iPhone as your camera and microphone
   if needed.
5. That’s it. Now you are mirroring the iPhone screen on
   your Mac.

BUT:

I’m pretty sure I’ve enabled all the permissions when connecting my iPhone via USB-C cable that is capable of transmitting data, not a dumb cable.

I just want to take a screenshot from an app that prevents me from taking screenshots, I thought that connecting to Mac is the simplest, I may just use another camera and then enhance in Photoshop.