Just pick a colour you like and buy it, it is a bike FFS.
All the crap you hear about angles, tube lengths etc is basically that, crap.
You will learn to ride the bike you have, and you will learn to justify why it is better than everything else. Think of it like this, pros get given a bike they race it. they don’t get to say oh sorry sponsor i don’t like the bikes you make.
There are very few bad bikes on the market.
Oh, and i would look at buying a bike from a decent shop because when it goes wrong you’ll get some support. And look at the warranty, lots of expensive niche bikes are out there with little or no warranty, so when the back end cracks you’ll be shafted.