Your system information

• Steam client version (build number or date): 15.12.22
• Distribution (e.g. Ubuntu): EndeavourOS
• Opted into Steam client beta?: [Yes/No] Yes
• Have you checked for system updates?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

Switching to Beta the login window remains a grey screen.

Steps for reproducing this issue:

1. Simply opt into the beta of Steam