jesus fuck the whole discussion here is ptsd inducing... you need at least color accurate monitoring (including $25-30K calibrated monitor if you want to discuss rec2020-beyond) before judging if the output color looks "correct", and as correct here includes perceptually uniformity, then your monitor is crucial since light emitting technologies in the market are wildly varied.

this is _especially_ vital if you're not from color science & color correction industry, because that means you have no prior experience(s) with many problems & implications faced in the last 30 years of say, film post-production, which might have seen or solved some of these newly experienced "problems", which might've been caused by hardware choice(s) for example.