The Biden administration announced Friday that 804,000 borrowers will have their student debt wiped away, totaling $39 billion worth of debt, in the coming weeks due to fixes that more accurately count qualified monthly payments under existing income-driven repayment plans.
If the legislative has delegated the execution of certain fiscal policy to the executive, and given the executive certain bounds within which it can operate on that fiscal policy, then the executive is within its prerogative to do so.
The legislative branch has been abdicating power to the executive for some time due to its own consistent deadlock. I don't think that's a good thing, but it does mean the executive often ends up with some limited purse string control.