Steps to reproduce:
- Have latest Ubuntu MATE Welcome installed, thus 639
- Go to Software Boutique
- Navigate to Games section and click on "one-click installation" link
Expected results:
Actual errors:
Detailed screencast from latest Ubuntu MATE 21.10 is below:

Steps to reproduce:
Expected results:
Actual errors:
Detailed screencast from latest Ubuntu MATE 21.10 is below: