2020 Macbook Pro Black Screen Weird Graphics Issue, Backlight works!!!

I was using my macbook in 2022 when the screen suddenly went black. The backlight works but nothing shows. I was trying to install Lumion for my work on parallels and had to do a restart. That's when the issue started A screen replacement was too expensive for me at the time so I plugged in an external monitor and continued to use it until last month when I was installing an emulator to play a videogame the display suddenly started working again. No cracks no issues, nothing, it was crystal clear as if it was brand new. Ofcourse I was excited but this was short-lived. It only lasted two weeks and went black again. Because of this I highly suspect it a graphics issue. I've tried every fix I've found on the internet but I can't get it to work again. I hope someone can help me fix this without replacing the screen.