I tend to use Google Fonts. And stick to the system fonts. But hosting the fonts on the CDN as a very good idea. I completely forgot about link rel preload. I've created and used various font preloaders for various formats. Google fonts do the trick.
As for font flashing I used a trick many years ago which was to render the font off screen before hand. This discussion is enriching.
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I tend to use Google Fonts. And stick to the system fonts. But hosting the fonts on the CDN as a very good idea. I completely forgot about link rel preload. I've created and used various font preloaders for various formats. Google fonts do the trick.
As for font flashing I used a trick many years ago which was to render the font off screen before hand. This discussion is enriching.