Set the default file manager for Linux.

Searched for a while and tried many times.

Using this command works:
Use Xfce's file manager

xdg-mime default Thunar.desktop inode/directory

Replace Thunar.desktop with the name of the file manager you want to use.
If it still doesn’t work, you can only uninstall the original file manager == .

I prefer using Gnome's file manager:

xdg-mime default org.gnome.Nautilus.desktop inode/directory

Found another method on the Deepin Forum:

Modify the following line under the
[Default Applications] field in ~/.config/mimeapps.list:
inode/directory=org.gnome.Nautilus.desktop
to change the default file manager.

This method is more intuitive and convenient!
It’s strange—I searched through foreign forums and communities earlier and only found the method above, with many explanations being quite vague. After using Chinese search, I quickly found the solution. I have to admit, our domestic computer development is really not lacking!

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