Issues with fitting layout in app (can't adjust windows).
The desktop app doesn't allow resizing of the Friend Activity and Library bars when the language setting is changed to a language such as Hebrew and Arabic, making the desktop app window mirror due to the right-to-left writing.
The developer team at Spotify has received your feedback and worked on this. We're happy to say that the side columns on the Desktop app are now resizable!
If you can't resize them, please run a clean reinstall of the Spotify app, as described here. This will assure you're running the latest app version 🙂