Assuming this issue cannot be bypassed while using Open Shell, does anyone have another suggestion for a similar overlay to Windows 10 for past Windows 7/8 users?
Ping.
I think I have something else interfering with this feature. I exited Open Shell for the current session, bringing back the old start menu and explorer windows. The ability to delete individual search strings is still not there. This may be related to something else I have done to my PC.
Search in File Explorer does show old searches in sequence, which can be individually deleted by hovering over the searched-for item and pressing the Delete key. If you are talking about Windows Search, not File Explorer Search, Microsoft has been seriously screwing with Windows Search in its massive updates, to the point that the feature temporarily disappeared on many users Win 10 boxes, so a Windows update might be responsible for your problem, not Open Shell: https://www.windowscentral.com/windows-search-down-many-showing-blank-box-instead-search-results
Not that I think this is a great idea, but just FYI, the final version (4.3.1) of Classic Shell, though abandoned by its developer, still works in the most recent version of Win10.
I only know the Bourne Shell (sh), C-Shell (csh), Z-Shell) (zsh), and the Bourne Again Shell (bash). Never played around with ksh, tcsh, or others.
Do what like but Windows 10 is perfectly usable as is. You are wasting your time.
I use Power Shell to dump provisioned apps