It would be very useful to have a toggle to not show disabled projects on the Dashboard page.
We’ve a lot of disabled projects for various reasons (different deployment process for different infrastructure, deprecated but might be needed in future) that we don’t want to delete just yet, as it pollutes the view quite a lot.
We’ve actually had a similar suggestion raised internally recently too.
I’ll add your request to that discussion and hopefully, it will be something that is added.
In the meantime, whilst it isn’t ideal, you could add your disabled projects to the same Project Group and then edit the dashboard to show all project groups except that one.