There are annoying show-stopper bugs that the developer refuses to fix, like this one for not being able to set options for null/empty values when importing data from csv (
https://github.com/jakob/Postico/issues/406). Or issues importing CSVs exported by Postico itself, that seems like a pretty basic requirement.
On the other hand, even though DBeaver has an annoying and ugly UX (as any other 90s Java software) and is full of warts (eg not showing a unique key constraint in a postgres table, which was visible in Postico), it somehow feels more substantial.