Many low-end and mid-range chipsets can’t even play 4K video. At one point Qualcomm even dropped 4K support on 600 series even though past ones had it.
I’ve got one like that. Tops out at 2K so I can’t view videos from my older phone without either downscaling them or re-encoding them into something efficient enough to use SW decoder in VLC.
Doesn’t seem to be the case here, but could it be due to subpixel rendering?