Hardware acceleration on Flatpak Steam

Hi all, having difficulties getting HW acceleration to work with Steam games here and wondering if anyone can help out. Last time I had it working on EndeavourOS, also using Flatpak Steam, and Unpacking ran well with HW accel, monitored via intel_gpu_top. Recently installed Flatpak Steam again and now no matter what I do it just won’t work. Also both the app and its games run under Xwayland now - the app aside, I believe games used to run under wayland, or was it a dream?

HW accel does work with f.ex Chromium, Firefox, MPV, and Webcord, I just can’t get it to work for games.

Anyway here are my installed runtimes:

Application ID                                                  Version              Branch
com.obsproject.Studio.Plugin.Gstreamer                          0.4.0                stable
org.chromium.Chromium.Codecs                                                         stable
org.freedesktop.LinuxAudio.Plugins.Calf                         0.90.3               23.08
org.freedesktop.LinuxAudio.Plugins.LSP                          1.2.16               23.08
org.freedesktop.LinuxAudio.Plugins.MDA                          1.2.10               23.08
org.freedesktop.LinuxAudio.Plugins.ZamPlugins                   4.2                  23.08
org.freedesktop.Platform                                        23.08.19             23.08
org.freedesktop.Platform.Compat.i386                                                 23.08
org.freedesktop.Platform.GL.default                             24.0.7               23.08
org.freedesktop.Platform.GL.default                             24.0.7               23.08-extra
org.freedesktop.Platform.GL32.default                           24.0.7               23.08
org.freedesktop.Platform.GL32.default                           24.0.7               23.08-extra
org.freedesktop.Platform.GStreamer.gstreamer-vaapi                                   22.08
org.freedesktop.Platform.VAAPI.Intel                                                 22.08
org.freedesktop.Platform.VAAPI.Intel                                                 23.08
org.freedesktop.Platform.VAAPI.Intel.i386                                            22.08
org.freedesktop.Platform.VAAPI.Intel.i386                                            23.08
org.freedesktop.Platform.ffmpeg-full                                                 23.08
org.freedesktop.Platform.openh264                               2.1.0                2.2.0
org.freedesktop.Platform.openh264                               2.4.1                2.4.1
org.freedesktop.Sdk                                             23.08.19             23.08
org.gnome.Loupe.HEIC                                                                 stable
org.gnome.Platform                                                                   45
org.gnome.Platform                                                                   46
org.gtk.Gtk3theme.adw-gtk3                                                           3.22
org.kde.Platform                                                                     5.15-23.08
org.kde.Platform                                                                     6.7
org.kde.PlatformTheme.QGnomePlatform                                                 5.15-23.08
org.kde.WaylandDecoration.QAdwaitaDecorations                                        5.15-23.08
org.kde.WaylandDecoration.QAdwaitaDecorations                                        6.7
org.kde.WaylandDecoration.QGnomePlatform-decoration                                  5.15-23.08

CPU and graphics

* PCI devices (lspci -nn):
     00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [8086:5914] (rev 08)
     00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 620 [8086:5917] (rev 07)
* GL Support (glxinfo | grep -E "OpenGL version|OpenGL renderer"):
     OpenGL renderer string: Mesa Intel(R) UHD Graphics 620 (KBL GT2)
     OpenGL version string: 4.6 (Compatibility Profile) Mesa 24.0.8

Any ideas on how to go from here, or point me to an up-to-date Flatpak Steam guide? Thanks a bunch!