If resetting Scrivener’s preferences didn’t fix the issue, please try holding the Shift key while asking the Mac to launch Scrivener. You’ll need to keep the Shift key held until Scrivener fully loads.
That will prevent the Mac from opening any projects automatically. Scrivener should show the new project templates panel. You can try opening the Interactive Tutorial from there.
Are you able to open the Tutorial and save it? Or, does Scrivener freeze again?
The Tutorial is a reasonably complex project, so it’s a good place to test how Scrivener is behaving without using your own work for the testing.
If the Tutorial will save, you can add some text to it and close it. Are you able to open it again?
If the Tutorial behaves, you can try opening one of your existing projects. Does it load now?
If the Tutorial behaves but your projects do not, we’ll need to consider where your projects are stored.
That is, are they in a cloud-syncing service like Dropbox, iCloud Drive, or OneDrive? If so, have you changed that cloud service’s settings so the projects are available even if the computer is offline?
If that’s not a factor, we’ll review what the projects contain.
Do your projects contain a lot images, PDFs, styles, or fonts and colors?
Those can all affect a project and cause crashing behaviors. Particularly if they’re paired with a cloud-syncing service if that service defaults to “online-only” settings.
If the projects are mostly text, what other third-party tools, security settings, and other programs are you running?
I’m thinking of anything from an anti-virus program to Keyboard Maestro, Raycast, Alfred, BetterTouchTool, ProWritingAid, Grammarly, Hazel, CleanMyMac, and so on.
Those programs could be affecting either Scrivener’s operation or trying to access the project when you’re opening it.
If you’re running a lot of those tools, you can log into your Mac’s “soft” Safe Mode and test Scrivener’s behavior there.
To do this, please log into your regular account with the Shift key held down, right after you put in the password, and hold Shift until your Mac finishes loading in.
This is a “soft” safe mode, all it does is keep the Mac from automatically loading software and background utilities. This mode has it start without access to Dropbox, no keyboard enhancers, no font managers, etc.
This Apple Support page has more information on using Safe Mode.
You can test how Scrivener behaves in this mode and then restart into your computer’s normal operation.
That comparison could be helpful in narrowing down what’s occurring.
By the way, I’m throwing everything–including the kitchen sink–here because we’re still working on a significant holiday backlog in the help queue.
Because of that, I may not be able to drop back to the forum for a bit, and I wanted you to have some additional options to test in the meantime.