Xubuntu/Ubuntu pushed some updates to 20.04 this weekend. One of the updates I noticed involved Lightdm. So I did a check and there was still a problem. But I thought let us be thorough, so I uninstalled the Nvidia driver and re-installed the default OpenSource drive.
I just did a reboot to confirm and yes it still works.
I suppose I should re-check with the Nvidia driver and will do it when I have time.
It should be noted I did check with replacing the Nvidia driver previously, and it did not work. So the Ubuntu changes to Lightdm must also be required.