Noted, I'll take a look.
I have found a lot of the time windows previews are very poor for pixel fonts due to how it processes a .ttfs kerning. The windows font preview shouldn't reflect the actual fonts use (however I will double check this for you as soon as possible).
For the godot issue, I'll look into that soon too. Checkout the below that might possibly help in the mean time.
Likely you can adjust the line spacing in godot (if you are talking about a vertical spacing issue), though I'm not 100% sure how since I don't use it.
The space at the top might be caused because it is accounting for accented characters.
Back to you soon, cheers!