Aby to fungovalo vo flatpaku, musel by v nom byt pribaleny libamdhip64.so (+ dependencies), co nie je. Podobne, pre intel tam nie je oneapi, takze tam hw akceleracia nefunguje tiez.
https://github.com/flathub/org.blender.Blender/issues/121 (amd)
https://github.com/flathub/org.blender.Blender/issues/140 (intel)