Sign-in is required to access Creative Cloud and then any app in Creative Cloud... regardless of already signed in apps. Editing in Photoshop from Lightroom Classic requires another sign-in. Opening a pdf file in Acrobat and then minimizing the window to switch to Creative Cloud's Photoshop and then return to the minimized Acrobat file window required sign-in again.
I've spent too many days trying to resolve this never ending sign-in all day whenever accessing any Adobe app. I've followed all the suggestions in the community support groups. Uninstalled Creative Cloud and reinstalled; uninstalled all the Photography Plan apps and reinstalled; uninstalled Acrobat apps in the Document Plan and reinstalled; uninstalled Acrobat and deleted all registry entries for Acrobat.
From a Windows 11 perspective, I confirmed that the WMI services are running. I changed my Adobe login password. Renamed 'C:\Users\<user>\AppData\Local\Adobe\OOBE'.
This appears to have been a reported problem as far back as 2013 and as recent as October 2022. Help please.
I was reluctant to go through all those steps because it felt like things I had already tried so many times over the last three days (in addition to other steps from the community). I did them all in order skipping nothing. Since I was still skeptical, I also went through the registry and deleted (almost) all references to acrobat, adobe and photoshop. There were many after rebooting and before installing Creative Cloud. I have no idea whether that mattered but decided it wouldn't hurt. It didn't and all is well again. Thank you very much!