While the latest release of Explorer in Windows 11 does not support editing the properties in the Details pane, you can still edit the properties for multiple files via right-click Properties. You don't have to edit the files one at a time. Just select multiple files, as you always have, and, instead of going to the Details pane, right-click on any one of the selected items and choose Properties (or press Alt-Enter), edit the properties and it will apply to all of the selected files.
Whether Microsoft will bring back the ability to edit properties in the Details pane remains to be seen.
After KB5034204 is installed, the previous methods that were available to restore the old Details pane no longer work. Currently, the only known way to get the old Details pane, is to launch the old Windows 10 Explorer via the Control Panel or by using a small launcher program, such as OldExplorer.
Alternative:
You can use the free tool OldNewExplorer to add the Windows 7 style details pane to the bottom of the Explorer window. This restores the ability to directly edit file properties, albeit in a different orientation.
Here's a screenshot:
The paid program StartAllBack (from the same author) provides the same option plus other features.
Also see SwitchExplorer if you want a free, minimalist method to switch Explorer to the Windows 10 version.