I’ve run into an issue with flatpaks not running through Steam on the latest beta update from yesterday, due to missing dependencies in the steam provided runtimes.

I’ve also seen people reporting issues with broken app images and some steam games not working since the update.

If you’re on the beta and run into any strange issues, I would appreciate hearing about them, and would also recommend trying to revert to the stable update before spending too much time troubleshooting them.