I think Jumpstart is best played against other Jumpstarts. I see it as it’s own format. It might be cool to easily have standard decks, but they’d have a pretty low power level. I like that there’s so many themes and you can jam a bunch of quick games with different decks.

But a 60 card jumpstart deck you could play in an fnm standard event

I think even when Jumpstart was recently released, they weren’t standard legal. Pretty sure the upcoming Avatar Jumpstarts won’t be. But for some sets they did have Jumpstart packs that were standard legal, so it could have been a thing!