I believe this to be misunderstood information (I don't understand it to be honest, it's paradoxical). The Angels must have free will as we know it. They were able to revolt (and fall). Uriel was able to choose to lend his Grace to Michael knowing that there was a chance Michael would misuse it. All of the Fallen who do bad things were Angels.
I guess there could have been a change of some kind after the revolt and the angels are much more absolute (to the point of no free will) and unable to fall as long as they don't lend their grace out.
iirc, they can still fall, thinking it was in Woj talking about how they still have the one big choice switch to flip?
But, that doesn't actually make sense by itself. It's like, they have absolute free will, but are not allowed to exercise it without being cosmically effected by their actions.
With all the Meta on older creatures being mad about humanity usurping, I'm thinking the lack of free will wasn't always a thing perhaps?
The fallen for instance, did they rebel against long standing orders, or did they actually rebel during a changing of the status quo they disagreed with?
The former would imply absolute free will (as long as it doesn't violate cosmic decree) while the later to me, implies they reacted with free will to orders they disagreed with and we're punished.. I suppose that equals the same thing though. Looking at similar cases... Ghosts who don't stay on their side of the line, who interfere with humans or feed on other ghost become corrupted. The Nags refused to leave when it was their time and became corrupted by it.
It seems, they all can chose, but not following rules on those choices has consequences..
Makes me want to reconsider free will vs agency to effect fate. Where in, free will is the ability to change what choices you'd make in an particular circumstance and agency is the ability to effect the fate of others without consequence, to effect the flow of time. Angels aren't supposed to do either right? But they do have A will, even if it isn't free to act.. (did Uriel make a choice to give Michael his grace, or was he changed from his interactions with mortals around Harry? 🤔 It's been implied Lash never got free will, she just borrowed some of Harry's personality/choices basically making the same one he makes a few books later, to die under their own circumstances rather than live as something they perceive to be monsterous)