Clicking on Apple Reminders notification in macOS opens Quick Look Simulator instead of the Reminders app

Hello Arombard,

Thanks for choosing the Apple Support Communities. Let's see if this same issue occurs when starting to safe mode. This will rule out the possibility of third party apps interfering with what you're trying to do.

How to use safe mode on your Mac - Apple Support

"Before you begin

To start up your Mac in safe mode, you need to know what type of Mac you have.

1. On your Mac, choose Apple menu  > About This Mac.
2. Look at the information in the Overview pane to determine what type of Mac you have:

• If you see an item labeled Chip, followed by the name of the chip, you have a Mac with Apple silicon.
• If you see an item labeled Processor, followed by the name of an Intel processor, you have an Intel-based Mac.

1. Use the corresponding set of instructions below to start up your Mac in safe mode.

Start up your Mac with Apple silicon in safe mode

1. On your Mac, choose Apple menu  > Shut Down.
2. Wait for your Mac to shut down completely. A Mac is completely shut down when the screen is black and any lights (including in the Touch Bar) are off.
3. Press and hold the power button on your Mac until “Loading startup options” appears.
4. Select a volume.
5. Press and hold the Shift key, then click Continue in Safe Mode.
6. The computer restarts automatically. When the login window appears, you should see “Safe Boot” in the menu bar.

Start up your Intel-based Mac in safe mode

1. Turn on or restart your Mac, then immediately press and hold the Shift key until you see the login window.
2. Log in to your Mac.
3. You might be asked to log in again.
4. On either the first or second login window, you should see “Safe Boot” in the menu bar."

It may also help to create a new user and see if the same issue occurs. Check out the link below for the steps. Testing in a new user will determine if the issue is system-wide or if it is user account-specific.

Set up users, guests, and groups on Mac - Apple Support

Let us know what you find, and we'll go from there.

Cheers!