Is there a way to start PowerShell in a specific folder from Windows Explorer, e.g. to right-click in a folder and have an option like \"Open PowerShell in this Folder\"?
I'm surprised nobody has given this answer, it's the simplest one. (Must be the year.)
Just Shift + right click in Explorer. Then you can "Open PowerShell window here".
It may be set to Command Prompt by default. If so, you can change this in the Windows 10 Settings: go to Personalization -> Taskbar and enable "Replace Command Prompt with Windows PowerShell in the menu when I right-click the start button or press Windows key+X".