I have a few questions about LineageOS and cus…

I’m currently running LineageOS on my smartphone and here is widely advised for privacy. Now, I know that you can always audit the source code and compile your own build but, for those who don’t know about this stuff or simply are lazy, isn’t a bit risky using custom roms even if from a reputable source like LineageOS official repositories? Do they compile each build and update? How do they audit the source code? If they don’t, isn’t it a matter of whether you trust the mainteiner or not?

Found here