Parked aircraft are the most high-value tagets. It's perfect for (rather: against) those. But I'm not sure if any airfields in active use remain in range, I think the Russians have evacuated Berdyansk (maybe Luhansk, too) air base. I think the AFU currently only have ATACMS with cluster munitions, so it's no good against hardened infrastructure, only soft targets: concentrations of unarmoured vehicles and personnel.
Given the number of aircraft that I’ve seen crashing, across the Azov sea. I would say they’re operating next to no aircraft in range of ATACMS. I’m not totally sure they have much of an air presence these days…? I can’t say I’ve kept hugely up to date, but, the only times I hear about the Russian Air Force now, they’re crashing into their own apartment buildings or blowing up dissenting officials in transit.