Does it matter ?

No really, I'm not trying to be edgy. Does the font we're using to read a document matters??

Last time I checked, scientist agreed that the best for an average user is the font you're used to. Serif, sans serif,.. didn't matter. Just keep using the one you always used.

So I don't get why every so often, Google work on a new font. Pick one and stick to it, user don't care.

Or am I missing something ?

BTW, personnel opinion but the only fonts i found to really look better than anything else were apple fonts. They don't make things easier to read but they just look so nice whereas Google always feel meh.