This command opens the specified file in its default application. For example, a markdown file might open in Xcode or another text editor. Open a File in a Text Editor: open -t ./path/to/your-file.md ...

When accessing your files, File Explorer is your go-to option. When you click on File Explorer, it opens up a default view that gives you access to the default folders, like desktop and pictures, ...

The Finder is one of the most customizable elements of macOS. However, Apple’s two interrelated settings for how folders open a Finder window don’t seem to have any effect and haven’t for years.