Quick Connect Connectors and Oracle 19

In QC 6.1 There is a link to download additional connectors.  When I try to open it on my server, web browsing is blocked, when I copy the link it is rather generic and doesn't take me to a list.  Have been digging around and have been unable to find them.  Curious what they are.  Working on something that uses Oracle 19.x as the client.  I was wanting to see if there were any other Oracle Clients, or does anyone know how QC determines which client to look at when there is more than one?  I thought maybe it was the environment variable, but even though 19 is listed first it is still using the 12 client.