3.6.x Preview/Beta Branches do not allow Steam Deck to Sleep

[xenrohachi]

• Steam client version: 1719453458
• SteamOS version: SteamOS 3.6.8 Beta
• Opted into Steam client beta?: [Yes]
• Opted into SteamOS beta?: [Yes]
• Have you checked for updates in Settings > System?: [Yes]

Please describe your issue in as much detail as possible:

Beta/Preview Channels do not allow Steam Deck to go to sleep. Pressing power button will play sleep video, but after about 1-2 seconds the SD will play the "power on" sound and re-awaken. Uninstalled Decky to ensure it was not being caused by that. SD OLED, i have the stock Kingston 512GB NVMe

Edit: Uploaded System Report after bug, profile name: SpoopyToots

Steps for reproducing this issue:

1. Be on Beta/Preview
2. Press Power Button for Sleep
3. Do not get sleep mode