SteamOS 3.9.3 Beta improves Steam Frame wireless adapter support

Valve released SteamOS 3.9.3 Beta with better support for the Steam Frame wireless adapter and fixes for Steam Machine. Desktop Mode moved from Plasma 6.4.3 to Plasma 6.7.3, with preliminary hibernation support and Legion Go 2 brightness control added.

• Desktop Mode updated from Plasma 6.4.3 to Plasma 6.7.3
• Fixed ELDEN RING and DARK SOULS III failing on Intel Panther Lake
• Added preliminary hibernation support
• Wi-Fi backend switched to wpa_supplicant by default for new installs