I know this isn't a support forum but as someone who works analytics I tend to use the same SQL editor to connect to different databases. At the moment it is DBeaver[0]. Maybe I am missing it but I cannot see how to connect to DuckDB using a regular SQL editor.
As a possible hack, you could rename it the soname as sqlite and put it first in the library search path. It would have to implement the same abi though.
[0]https://dbeaver.io