Quick open files dialog like in JetBrains products or VSCode
In VSCode or JetBrains IDEs like PyCharm presents an ability to open files by its name and content via shortcut. If you double click on Shift key in PyCharm in any place the IDE opens a dialog to quickly open the file. Similar in MS product, just press Ctrl+P and you've got an Search file dialog opened at the top of the window.
This is so useful feature that helps a lot while coding large projects.