Most of my club captains have been bowlers, certainly when I first started playing all the first 3 were bowlers.
Current team captain is a bowler. The only difference I have known over the years is the batting order...ours changes so often and we get not much notice going up or down as the innings is going on.
When I captained I avoided this specifically, maybe because for loads of years I opened ...so I had to know where I was batting before the game started...I knew other guys liked to have a spot as well. So I rarely changed it.i think it helps to have a number and get used to it. It wasn't rocket science....decent technique and patience up the order, no patience or capable of whacking it..in the middle,non batting bowlers at the end.
But I've got used to changing position now, some others would like a set spot as well.
I don't know if this is because he is a bowler....my perception is that it is
But generally I don't think it makes much difference Keeper, bowler or batsman who makes a better captain