Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

29.4.0

What operating system(s) are you using?

Ubuntu

Operating System Version

Ubuntu 24.04

What arch are you using?

x64

Last Known Working Electron version

22.3

Expected Behavior

Use the same "Open file" dialog as in other GTK applications, adhering to the modifications specified in the GTK theme (see additional information).

The default directory when the dialog opens should be the directory of the currently edited file.

Actual Behavior

The file dialog is not the native system dialog (see Note 1). Customizations made to the file dialog in the GTK theme are not applied (see additional information).

The dialog always opens in the "Recent Files" list instead of the directory of the currently opened file. Navigating through tree structures is a nightmare.

Testcase Gist URL

No response

Additional Information

For some reason, Gnome decided to remove the use of the backspace key to navigate back in file dialogs. To work around this, I made a small modification:

cat ~/.themes/custom/gtk-3.0/gtk-keys.css
@binding-set MyOwnFilechooserBindings
{
    bind "BackSpace" { "up-folder" () };
}

filechooser
{
    -gtk-key-bindings: MyOwnFilechooserBindings;
}

gsettings set org.gnome.desktop.interface gtk-key-theme custom

It would be great to have some directory in which to add these modifications to the GTK theme.