Docker Desktop: How many CPUs can I assign to it?

On my MacBook Pro I have 8 performance cores with 2 efficiency cores. So I have 10 cores total. In my Docker Desktop configuration I can choose how many cores are allocated for use of Docker. Is there guidance on how many cores I should give to it? I do builds in the containers, so being able to pass higher -j values is helpful. I currently have Docker configured for 8 of my 10 cores. 10 would probably be better for my dev work, but is assigning all cores not advisable? I can't find guidance or heuristics on choosing this on a Mac host.