Question: Q: How to unlink iPhone from mac

On your Mac, go to System Preferences > General and uncheck the Allow Handoff setting. To turn off Handoff on your iPhone, iPad, or iPod touch, go to Settings > General > Handoff & Suggested Apps, and turn off Handoff.

How do I stop sharing between iPhone and Mac?

Turn off Handoff on your devices
  1. iPad, iPhone, and iPod touch: Go to Settings > General > AirPlay & Handoff.
  2. Mac: Choose Apple Menu > System Preferences, click General, then deselect “Allow Handoff between this Mac and your iCloud devices.”