I am having this problem with English on a Surface Pro 2 running Windows 10 Pro (version 1803), Default Resolution of 2160 x 1440, Scaling is set to 150%(Recommended) and I only use the builtin display. I have tried both with and without Allow Windows to Fix Blurry Apps.
The font does not line up with any of the boxes on any of the screen. The font looks like it is not scaling at all.
Not sure what other troubleshooting steps to try.