With the release of MacOS , Apple made some key changes you’ll use your Mac going forward. For starters, iTunes is nowhere to be found, developers can tweak iPad apps to run on the Mac and you can use your iPad as a second monitor with Sidecar. 

from https://www.cnet.com/how-to/itunes-is-dead-heres-how-to-back-up-and-sync-your--in-macos-catalina/
https://cnet2.cbsistatic.com/img/rDsVk80sbIjWm0JDt7K7QUmAL24=/2019/10/08/f54b0668-d681-4501-8b23-ab6eb8788a4d/iphone-11-syncing-with-finder.jpg