HoloISO Immutable update 8 version snapshot20240603.0901 build 45 (Branch: beta)

Also applies to snapshot20240603.0905.04 in stable release branch.

Changes

Device/HW Support

• Add support for Intel iGPUs
• Fix Polaris (Ellesmere) and many other AMD GPUs not booting into gamescope
• Fix GRUB not being detected by BIOS
• Update linux-lljy to 6.8-CFS
• Update MESA to 24.1
• Fix user login issues (black screens)
• Fix locale not being properly detected

To update...

Update via steamos-update or the update button inside Deck UI Settings