Zero companies receiving the bailout money are going to buy back stock with it. This whole charade is just a big feel good bit of nonsense for main street.
What people are complaining about is that previously these companies did buy backs. Boeing did buybacks (when they were profitable, though they cancelled them when the 737 MAX disaster began). The airlines did buybacks. Etc.
People are complaining that if these companies all sat on enormous war chests they wouldn't need help now. But that has never happened and will never happen like that because it would be ludicrously inefficient for the market at large.