Threatening not to sign legislation that you really want unless you also get something else that you really want isn’t credible, because it is the political equivalent of cutting off your nose to spite your face–a tactic favored only by extremists on both sides. Fortunately, Biden quickly reversed course, and the bipartisan infrastructure bill is back on track, although it remains to be seen whether it can get 10 GOP votes in the Senate.
It actually makes far more sense, from a tactical perspective, to send the bipartisan bill through the system before the more sweeping partisan bill. That way, if it fails, it can be folded into a reconciliation bill, and the GOP will be denied any credit for any interest in infrastructure improvements or bipartisanship.