It's bizarre to see a headline saying that a president is considering a constitutional amendment option, as if he believes he has discretion not to abide by the Constitution.
No, Biden has no constitutional discretion here. He must pay the debts, and if he were to order the Treasury not to pay the debts, well that would be an impeachable offense, so he really needs to knock off the talk of default, of not paying.
We've had months of bluster from politicians threatening default when that is not a constitutionally available option, and we really should have pushed back against them, just to kill that rhetoric from the beginning. It is not helpful.