Reproduction steps:
1. Install Nemo file manager with these steps:
- sudo apt update
- sudo apt install nemo
- xdg-mime default nemo.desktop inode/directory application/x-gnome-saved-search
- gsettings set org.gnome.shell.extensions.ding use-nemo true
- gsettings set org.gnome.shell.extensions.ding show-home true
- reboot
- test if xdg-open is working properly with Nemo file manager, by using ‘xdg-open $HOME’
2. Remove the Nautilus file manager with these steps:
- sudo apt-get update
- sudo apt-get remove nautilus
- sudo apt autoremove
3. Create a new 3D Unity Project
4. In the Project view, right-click anywhere
5. Click “Open Containing Folder”

Expected result: Nemo file manager opens the containing folder
Actual result: Nothing happens

Reproducible with: 2021.3.26f1, 2022.3.1f1, 2023.1.0b20, 2023.2.0a15, 2023.2.0a18
Not reproducible with: 2023.2.0a1, 2023.2.0a14