InDesign 2022 on brand new laptop will not open any INDD files

DropBox, that is the reason.

Dropbox does not save any files per default on your computer, only in the cloud to save space. When you go to the file in the FInder and you select it, right Mouse Click you see the entry most bottom: “Make available offline“. Do that before you work with any file or linked asset. You can do the same to folder.

You can also change the DropBox preferences, but they are sticky.

As mentioned by @Eugene Tyson this could be a problem with Dropbox. So try the following to diagnose the problem

• Create a new file, save it to your MAC locally and see if you can reopen it
• Download the file from Dropbox to your MAC and they try to download
• Make sure InDesign has access to disk as needed by newer versions of MAC OS

-Manan

You're opening the file from a Dropbox location?

Did you install dropbox on your new computer and sync all the files to your new computer?

You will also need to turn off Smart Sync.

This is a dropbox issue. InDesign needs to create a hidden file called an IDLK (InDesign Lock File) and can only do that with correct permission and access to store files. 

Sorry to hear that you're having trouble.

Go through these steps:

Identify and troubleshoot file issues

When you first launched InDesign, did you see the "Verifying Adobe InDesign 2022" status bar?

Since it sounds like nothing is happening as expected, it's probably worth opening a support chat and having a support agent verify that InDesign is installed correctly.  Go to Welcome to Adobe Customer Care and click the Contact Us chat bubble at the lower right of the page.  It's automated at first, but answer the prompts that you need assistance with installtion.

At the very minimum, you should be able to get to a point where InDesign launches as expected and you can create a new document.   Hopefully at that point, you'll be able to open existing documents as well.