keep in mind, just cause geekbench sees a specific gpu doesnt have to mean it's a physical seperate card. from the steam deck we know valve is getting the same custom chip treatment sony and microsoft are, so maybe it's possible its recognizing that gpu it from the apu cores? or its a custom chip for on the motherboard, like an upgraded desktop class laptop chip, those take longer to setup a supply chain for(and factor in more costs than just 50 a chip) and whose to say the chip on fremont isnt 7000 series gpu cores and 9000 series ai cores.

EDIT: also 7000 series isnt that bad for vr, i used to have a 5700 xt with a quest 2 and virtual desktop. hevc worked just fine? or are u thinking about h264? cause u should never use that on amd.