Hey @Jeroen,
Yes this [doesn’t have complete feature parity with the desktop (sadly)] was also the information in the linked Topic about “ordering not in sync” https://community.anytype.io/t/collection-in-desktop-and-mobile-has-not-the-same-ordering/.
But strangle, this was working just fine a long time!!!
But then, a moment laeter - I guess with some update - the sorting between Desk and Mobile was first not automatic clean. So I hade to flush the cache in Mobile and recreate a new Object and add them to Collection “Favorite”. And it was fine - frickeling and a lot of time-waste compared to the legacy-App. But working.
But since a few days/maybe weeks (I do not create a lot of new objects every day) this sync is not possible to clean -with workaround flush moble cash and recreate on mobile…
So I guess the feature was there and works fine. But with some kind of code (update) or data-volume (new objects) its “out of order” 
.
Back to your Personally solution of dashboard MOC. Is this is a “hard-coded” page without on the fly sorting?
Or does your MOC sort new objects automatically at the first place in your MOC? Or do you mean the built in Object Map of Content and you have built some solution with this?
Would be great if you could share (too)…