The day may come when the free ride to PreCheck given selectively by the airlines comes to an end. In the last (115th) Congress HR6265, the PreCheck is PreCheck Act, which would generally restrict access to PreCheck to those who had actually signed up for it, passed the House. Last seen In Committee in the Senate.

I'm embarrassed to admit that given that there is now a new Congress (116th), and that the bill never passed the Senate, I don't know enough about the legislative process to know if the bill is still alive or if it dead. I thought that I paid attention in my High School Civics class, but I've obviously forgotten a bunch. Anyone care to opine on the status of HR6265 with a new Congress?

https://www.congress.gov/bill/115th-congress/house-bill/6265