Color grading and Gama Compensation won’t work. pls help

Hi, so for the past 2 videos i've tried exporting on premiere using my macbook pro, my color grading looks fine until I open up the exported file on QuickTime. It's way too overexposed and the contrast is way off. I found that this is a common issue with the color management and have tried several different Gama Correction cube file LUT's, tried switching up my settings, and tried exporting on a different (& newer) macbook pro. Sadly, nothing is working and I've been trying to fix this for hours. If you know what's up please let me know 😭 the top is after exporting and the bottom is before

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