Are there any benefits or risks attached to compiling a kernel for dom0?

Haven’t compiled kernels since the nineties or so, but just wondering if that is a thing now with Qubes or not?

Would be nice to deselect all features that I know I won’t use as well as having some idea of what is essential, especially for laptops…

(Should be no need for performance now that almost anything is powerful enough, but who knows about that as well)