6 bit internal display possible on macOS?

I got a 6-bit internal laptop display (u know, they didn't consume much power and bs so many manufacters decide to install them instead of 8-bit display) so macOS can't handle properly depth color distribution. When I Installed macOS for first time i noticed color banding and not smooth animations as my screen recordings and screen mirror sessions. Looking for solutions the most common one was spoofing the IGPU (Intel UHD 620) to Skylake iGPU but this only works for KBL GPUs and up to Monterey, anyways i gave it a try and doing this lost on the process my QE/CI, even if i applied legacy patch with OCLP for Ventura/Sonoma so this didn't worked for me.

Then I saw other options like reducing color depth with external apps, i did this with SwitchResX downgrading from Billions (32bit) to Millions (24bit) and i noticed an improvement on the banding and smoother animations but still present the color banding issue in a less way.

So how can I set a depth correction color for the 6 bit internal display of my laptop from (24bit - 16.8 million colors) to (16bit - 262,144 colors)? I saw this was possible on really old macOS versions but i cant find nothing recent about this.

The image behind text \"Reduced color depth\" is how actually looks the test on my internal display and how i realized this was a display - macOS problem and not a video card issue. http://www.lagom.nl/lcd-test/gradient.php

This issues also happens on linux as far i saw on internet forums with 6bit panel displays. Linux have a feature to "fix" this faking 2 missing bits using dithering or something like that i'm not into this too much.