I have noticed the fonts are way too small in Ubuntu 17.10 on my laptop with 2560x1440 screen size. I found that people "solve" this by enabling fractional scaling [http://www.omgubuntu.co.uk/2017/09/enable-fractional-scaling-gnome-linux] in Gnome 3.26 on Ubuntu 17.10 "artful" in the Wayland