Unable to disable discrete graphics through SSDT/DSDTs

I followed this guide https://www.tonymacx86.com/threads/guide-disabling-discrete-graphics-in-dual-gpu-laptops.163772/but still wasn't able to disable discrete graphics, when i check system report dgpu is still detected. when i use terminal to detect _INI and _OFF files i only get 2 SSDTs files and one DSDT not sure how to follow the guide any help would be appreciated

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https://imgur.com/x3hBs5V