In my opinion getting a stubble would improve looks of vast majority of men, because first of all facial hair is sexually dimorphic trait and as such is one of the things attractive to women . Second of all it gives you more defined facial features like jaw line. Also beard can help you make your chin look more prominent .
There are exceptions , like having very sharp facial features (rag. Johnny Depp ) where facial hair is not necessarily helpful or having bad facial hair genetics ( ginger beard etc)
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I perfer to have stubble. I am litterially at a point now where if I shave at 10 in the morning by 10 at night I have stubble back. So I try to maintain it, I don't want a full grown beard but I perfer the stubble look. I try to shave or trim certain parts like the chin where it grows faster and darker to even it up.0