Hi @user
64-bit drivers for the report servers
On the Oracle download site, install the Oracle 64-bit ODAC Oracle Universal Installer (OUI). You only need the following steps when using Oracle ODAC drivers 12.2 and later. Otherwise, they install by default to a non-machine-wide configuration for a new Oracle home installation. These steps assume you've installed the ODAC 18.x files to the c:\oracle64 folder.
Check it out here: https://learn.microsoft.com/en-us/sql/reporting-services/report-data/oracle-connection-type-ssrs?view=sql-server-ver16