I have a 'unisex' road bike - which was built from frame up for me, so it fits in terms of bar width, stem length, saddle.
I also have a ladies road bike which fits me in terms of bar width, stem length, saddle (ok I changed the saddle to one I had) BUT it didn't cost me money to change the bars and stem.
I could have bought the same specced one from the men's range but to have the same length TT, I would have needed to change the bars and stem - probably cost £100 and the bike was the same price
I am 5'9 (and a bit) so I could have my pick of 54cm framed men's bikes but it suited me to get the ladies one - and it's not pink, mauve, baby blue - and EXACTLY the same spec as the men's bike for the same money - and I much preferred the colour of the women's bike (red). I think the spec-cost differential is less now from the big manufacturers, but there is much less choice of women's roadbikes which makes total sense and fewer women by far buy roadbikes.
As others have said, get whatever fits you, hits your budget and suits your aesthetic leanings. If I had only had £300 I would have perhaps bought a triban 3 - but I would likely have needed to spend further money to get it right

Personally, I think most 'men's' bikes are a dull as dishwater, grey, silver, black anyone zzz