SteamOS 3.9.2 Beta fixes VRR, VR streaming and Remote Play

Valve released SteamOS 3.9.2 Beta with fixes for VRR, VR streaming, Remote Play and boot time. Desktop Mode was updated from Plasma 6.4.3 to 6.7.3, with preliminary Legion Go 2 and hibernation support.

• Fixed Remote Play without an external display and frame limiter with VRR
• Desktop Mode updated from Plasma 6.4.3 to Plasma 6.7.3
• Added preliminary brightness control support for Legion Go 2
• Wi-Fi switched to wpa_supplicant by default for new installs