The problem you have is you are trying to to do two different things you want a shiny paint with no pores open to stop moisture getting to it because it’s a kitchen, but then you want a flat mat paint to hide the plasterers sins.
ive just painted a shower room in zinzer permanent white and it looks really good, however it has no windows in there so I cannot vouch for its hiding properties.
but definitely something I will use in wet areas again.
in a kitchen i would go with one of the flat ones we mentioned as it shouldn’t get damp, if you have kitchen extraction then it’s not going to affect it.
rubbing it all down oooh that’s the question
I wouldn’t because you then make it dusty and will then need to hoover it and wash it.
but I might be inclined to go over the f and b with a primer, maybe the Tikurila optiva primer then the Tikurila anti reflex.
you could phone Tikurila technical help line.