In Ubuntu 20.04, Remote SFTP connections do NOT connect to server.
They work in all Netbeans (12 thru 8) in Ubuntu 18.04
so it is something unique to Ubuntu 20.04 - Plain SSH of course works
All combinations of where client is Ubuntu 18.04 works even when SSH/SFTP connection is to Ubuntu 20.04 servers (or Ubuntu 18) which means it is not server specific
It is when Netbeans is installed to Ubuntu 20.04 that the SFTP connection does not connect to server - with user/password or running ssh agent
Hopefully it is something small. Pl fix for this much needed functionality
Edit: It might be related to