Primarily, I'd use it to give my son the best life he can have after contracting Guillian-Barre syndrome from the covid vaccine. A nice house close to me, money for the things he wants and needs and all the medical care and physical therapy he needs.
Having your life destroyed for doing the right thing is devastating, especially at 25 years old. He was valiantly still able to somehow continue working his remote tech support job until he was laid off. With the current market, it's unlikely he'll find work any time soon and even less likely to find an employer that will tolerate occasional days where the intense nerve pain is too much to bear.