Managed User Has No Access to Libraries, Admin Account Has No Problems

Could you redact my home URL in the logs and anywhere else in this post please?

You asked " It looks like you have local address as home.url.com and looks like the Roku is unable to connect to that host. looks like it resolved to your external IP."
The answer is on the Windows server, Settings>Settings>Network>Custom server access URLs

I did find a work around to the issue and I thank you for pointing me in the right direction.

Here is the root cause of my issue: Plex managed users are forced to use a remote connection. I don’t know if that is by design, but I can tell you that is what’s happening.
Facts: My Plex server runs on Windows 11 in my house on the same LAN as the Rokus.
When logged into my Roku Plex App as the Admin account, I go to User>Settings>Media Server Status> it will say “nearby”
When logged on as any other user, it says <Local_PC_Name> unreachable.
During the troubleshooting process I had gone into my Windows server and disabled remote access from the WAN. After your clue about the URL. I went into the server and reenabled remote access. Then logged into Roku Plex as managed user, the status changed to “relayed”. The issue with this - everything was playing at the bitrate limits set in the remote access settings on the server.
Once I realized that managed users were being forced out the WAN, I did the following:
Entered a loopback rule in my firewall to redirect local traffic bound for the WAN IP on port 32400 back to the LAN IP of my Windows server.
Then I went into the server and set Settings>Remote Access>Limit remote stream bitrate>Original (no limit).
Next, I turned off Settings>Network>Enable Relay
Finally, I went to Settings>Network>Custom server access URLs> and removed the home.url.com entry (I actually tried that step first to see if the managed user server settings would look on the local LAN - no joy).
Once I did all that, I logged into the Roku Plex app as managed user settings>Server Status and it reported “remote” instead of “relayed”
I tested a 4k movie on the managed user account and it played in the original bitrate.
To summarize, I think Plex developers have an issue to resolve. For now, I have found a sufficient work around. I do appreciate your help with getting me pointed in the right direction to identify the issue. Thanks for your help!