Huh? There are rules that if followed allow for forgiveness. The rules will presumably be applied fairly and equally to everyone. That's about the exact opposite of favoritism.
I don't see why @IG_Semmelweiss comment here is dead, it's not wrong...banks were incentivized to provide capital to their highest debtors / longest clients who otherwise were at greater risk of default and loss to the bank shareholders. It's not complicated, they acted in their best interest because there was by design nothing stopping them.
Fairly does not entail equally. Chances are there will be a political calculation done by whoever is in power at the time, and loans will be disproportionately forgiven in a way that offers the most political benefit. The approach taken will be touted as "fair" and the recipients "most deserving of forgiveness".