the relays in the primal settings are for writing. the app reads directly from primal's caching server only - not from relays. and their caching server controls which posts to show and in which order. it's curating and filtering on your behalf.
yea the source might be open, but there's no way to know what version they're actually running and with which environment variables and settings wrt content/filtering/censoring/deboosting/shadow-banning, etc
