Paper status changed to “Decision in Process” rapidly after initial submission

If there is a decision before it was sent to reviewers, it usually means a desk-rejection. This is not necessarily a bad outcome! It means you won't waste time on a review process that is not likely to be favorable and you can move straight ahead to another journal.

Other more rare outcomes are possible, though: they could issue a "reject and resubmit" if they think the paper would be a good candidate for review after some major changes were made. They could also be inviting you to a special issue etc.

But most likely outcome is desk rejection.