Problems and questions about nethunter for oneplus 7t

I downgraded from oos 11 to oos 10 to be able to use internal bt, wich didnt work at all. And it was super bugy and constant errors in terminal. So i upgraded to oos 11 (again) and built an image and a kernel installer, but theres two kernels. One for oos11 and one for all android images that use a11. So i built one for oos 11. Which made my device enter qualcomm crashdump mode. So i had to reinstall oos 11. Built the kernel again and tried to install it, shich failed again. Then i built one made for all a11. Which worked. Why doesnt the one made by kimocoder work, but the one that cybernight777 (which isnt even listed on the kernel stats page) work? And why is nethunter for oos 10 so buggy? Can someone please explain this to me. I really want interal bt which nethunnter for oos 10 should support. And why isnt the kernel made by cyberknight777 listed?