The ability to search for an application and bring those windows into focus. This is my primary way of switching between applications (except for the terminal which I have bound to Ctrl+Shift+Space). It's much easier for my brain to just type the first two letters of the app I want to focus then to remember the state of the app switch history.
This is "built into" PowerToys Run. In fact, at the beginning that was all it could do.
It's now been moved into a bundled plugin named after the original app that was morphed into this: WindowWalker. I don't remember what the special character you have to type to target the plugin is because I made my installation of PowerToys Run use that plugin by default without a prefix and I disabled all the other plugins.
As of the version I have installed (0.58) WindowWalker is included by default in the results of the PowerToys Run results. To target windows specifically the default character is `<`.
The ability to search for an application and bring those windows into focus. This is my primary way of switching between applications (except for the terminal which I have bound to Ctrl+Shift+Space). It's much easier for my brain to just type the first two letters of the app I want to focus then to remember the state of the app switch history.