Is there any way to recover a deleted voicemail?

A certain family member deleted a very, very important voicemail from their Android (Google Pixel 4A) phone. I'm not even sure exactly when this happened. (I understand that the content of the VM is not relevant to the question, but it was a voicemail from my wife's father, who has died, and so the message is irreplaceable and priceless to us.) I'm working with my carrier to see if they might have a record of it, but I am not optimistic. Is there any possible way to try to recover the audio from the phone?