Hi Ahmet,
1. Old material network changes text crispness: Octane Material (crisp), Mix Material (blurry), Composite Material (crisp), Layered Material (blurry) (see screenshot)
2. New Material network: blurred / pixelated as if the UI doesn't support high dpi.
3. New Material network: changing button font size changes the scale of the buttons but not the font itself (works as expected in old)