Grizl 6 Raw – Cons to Sizing Up?

I'm really wanting to buy the Grizl 6 Raw. Canyon recommends the 3XS for me, but the color I want is out of stock on the 3XS, but it is in stock in the 2XS. What would be the cons of going a size up with the 2XS? I see leg length is fine, but is it all about reach?

I have been biking for a little over a year, and I currently own a cheap box store mountain bike, so I don't know what I don't know and looking for insight. I regret my mountain bike purchase, because I really just enjoy long distance gravel riding. I'm desperately looking to upgrade to a much better and faster bike. Thanks in advance!