You do not need to download the 3+ GB full Oracle Client. Instant Client is ~100 MB and does the job 99% of the time.
sudo yum install oracle-instantclient19.19-basic.rpm oracle client linux download
sqlplus /nolog If the prompt appears, you're ready. You do not need to download the 3+ GB full Oracle Client
Here’s how to get it legally and efficiently. oracle client linux download
If you're setting up a Linux app server or ETL tool that needs to talk to an Oracle Database, you don't need the full Oracle software—just the .