Kubuntu 20.04 is a long term support release that currently uses Dolphin 19.12.3.

For the last few weeks, Dolphin has not been recognizing newly added files and I have to type ctrl-F5 constantly in order to see what's really in the folder I'm working from. Weirdly, even if I navigate to a folder AFTER a new file was just added to that folder, then too do I have to hit ctrl-F5 to see that recently added file (I wouldn't expect this problem to go to that degree; you'd think that navigating to any folder should always show the latest state of that folder).

Previously, Dolphin seemed to maintain almost real-time awareness of the folder I already have opened. For example, If I'd use some other application to save a file to a folder that I'm already have open in Dolphin, that newly saved file would pop into the list, sorted an everything (if I recall correctly).

I tried to get help with this here:
https://askubuntu.com/questions/1264620/

But, no one offered any suggestions.

I see you guys have already made later releases of Dolphin, but I really hope that the Kubuntu team will give special attention to Kubuntu 20.04 (since it is a long term support release) and do what it takes to keep Kubuntu 20.04 using a version of Dolphin that works well.