Not really an issue but if you need to link two schemas that are in the same MySQL database,
you should follow this doc Plug multiple SQL databases - Developer guide considering each schema as a separate database instead of the one about plugging different schemas.
For both urls:
mysql://user:password@database_host:port/your_first_schema_name
mysql://user:password@database_host:port/your_second_schema_name
Yes it didn’t work ! Also in my project I didn’t have any field “schema” in the models files or a DATABASE_SCHEMA variable in the .env… So maybe that’s why but it works as databases