I think `font-display: optional` is going to nice if sites actually use it - try to use the fancy font, but only if it's cached. Never hide the text or switch the font after rendering it.
Of course, there are going to be plenty of sites that still consider their fancy font to be more important than the actual text it's rendering...
Of course, there are going to be plenty of sites that still consider their fancy font to be more important than the actual text it's rendering...