To be a bill of attainder it would have to criminalize things that have already happened and were not criminal when they happened. A bill that says it is crimi

To be a bill of attainder it would have to criminalize things that have already happened and were not criminal when they happened. A bill that says it is criminal to have ever had TikTok on your phone or it is criminal to have every distributed TikTok in the US would likely be a bill of attainder. A bill that says that after some date that future it becomes illegal to have TikTok or distribute it would not be a bill of attainder.