The BOE ME2709QHB-NF0 has both a CELL (as used with the ‘QD’ models) and panel with backlight unit included (as presumably used with the other models). These can certainly differ when it comes to contrast. Also interesting to note that ‘interlace pattern artifacts’ were fairly noticeable on the VX2728J-2K (at lower refresh rates, at least) and much less so on the MAG 274QRF QD E2 I tested. EOTF and gamma can technically be used interchangeably, though it’s more common to use EOTF when referring to HDR and gamma for SDR. The scale can be a bit difficult to interpret on those graphs when comparing this mentally to the usual gamma graphs you’d see and the deviation looks somewhat exaggerated because of that. It’s not unusual to see that sort of gamma deviation and it’s certainly seen on quite a few MSI models, which unfortunately also lack alternative gamma settings.