No viable acceleration profiles detected

[moe93]

I am trying to run the server on a Proxmox LXC, and while it runs fine it lacks HW acceleration. I have my Intel iGPU passthrough and verified to be working with bare metal installation of Plex and Jellyfin. In addition, I have passed /dev/dri to the docker image and ran the following inside the container:

# ffmpeg -hwaccels

ffmpeg version 4.4.1-Jellyfin Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 12.2.1 (Alpine 12.2.1_git20220924-r10) 20220924
  configuration: --bindir=/usr/bin --disable-debug --prefix=/usr/lib/jellyfin-ffmpeg --extra-version=Jellyfin --disable-doc --disable-ffplay --disable-shared --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto --enable-gpl --enable-version3 --enable-gmp --enable-gnutls --enable-libdrm --enable-libass --enable-libfreetype --enable-libfribidi --enable-libfontconfig --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libdav1d --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libzimg --enable-small --enable-nonfree --enable-libxvid --enable-libaom --enable-libfdk_aac --enable-vaapi --enable-hwaccel=h264_vaapi --enable-hwaccel=hevc_vaapi --toolchain=hardened
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Hardware acceleration methods:
vaapi
drm

I can tell that the docker container can see and access the GPU, yet Stremio can't seem to utilize it for HW acceleration. Am I missing anything?