As of this morning, I could select multiple files, then right-click and open them all. (For example multiple image docs would open in the default image editor)Starting this afternoon, no can do ...

You may open multiple files with that Shortcut, if you want. Next, tap the Markup button (a pen tip inside a circle) at the bottom, and you'll see a bunch of tools on the screen.

You can open multiple tabs, scroll the tab list, close tabs, and do more with the new Tabbed File Explorer. How to use Tabs in File Explorer in Windows 11 ...

To make Notepad files always open in a new or separate window in Windows 11, open Notepad setting and change the 'Opening files' option.

Microsoft has changed the default behavior for how Office files open on iOS and Android. The change clears up confusion on how files will open and makes multitasking easier.