Upgrade to 3.5.0 breaks Steam Link and Sunshine

[rcarmo]

Describe the bug

I upgraded to the latest bazzite-deck-gnome:stable and both Steam Link and Sunshine stopped working. bazzite-deck:stable gives identical results, and only reverting to bazzite-deck-gnome:40-stable-20240611 got things working for me again.

This is a combination of sunshine still not being fixed and something newly broken in Steam Link.

What did you expect to happen?

I expected things to continue to work

Output of rpm-ostree status

Not applicable anymore since I reverted to bazzite-deck-gnome:40-stable-20240611.

Hardware

                                            me@bazzite
     %%%%%%====%%%%%%%%%%                
   %%%%%%%%    %%%%%%%%%%%%%%             󱋩  bazzite-deck-gnome:stable 
  %%%%%%%%%    %%%%%%%%%%%%%%%%           󰣛  Fedora Linux 40 (Silverblue) x86_64
  %%%%%%%%%    %%%%%%%%%%%%%%%###           Linux 6.9.6-201.fsync.fc40.x86_64
  %%%%%%%%%    %%%%%%%%%%%%%######        󰅐  5 mins
  ==                  =======######       󰔠  Spawned on Feb 27 2024
  ==                  =========#####     
  %%%%%%%%%    %%%%%%%####======#####     󰾰  HCAR6000-MI2
  %%%%%%%%%    %%%%%#######=====#####     󰻠  AMD Ryzen 7 7840HS w/ Radeon 780M Graphics (16) @ 5.14 GHz
  %%%%%%%%%    %%%#########=====#####     󰍛  AMD Radeon 780M @ 0.80 GHz [Integrated]
  %%%%%%%%%    %%##########=====#####       4.80 GiB / 30.60 GiB (16%)
  %%%%%%%%%====###########=====######       408.64 GiB / 475.35 GiB (86%) - btrfs [Read-only]
   %%%%%%%%====#########======######      󰍹  1920x1080 @ 50Hz [External]
    %%%%%%%=====#####========######       󰖺  PiKVM Composite KVM Device
     %%%%###===============#######       
      %#######==========#########           bash 5.2.26
        #######################             /dev/pts/1
          ###################             󰏖  2429 (rpm), 79 (flatpak-system), 41 (flatpak-user)
              ###########            

Extra information or context

No response