For remote jobs that hire in CO, there's also some pay discrimination depending on location (one rate for Boulder, another for Denver, and another for "everywhere else").
Lastly, there's a lot of companies that don't follow it if the job is remote across the US, either because they don't know or because the violation is only a couple grand and relies on people reporting the posting in a way that's verifiable or it still being up when enforcement gets around to looking. I will say that I haven't seen any postings that exclude Colorado, even from companies that originally did (DigitalOcean for one), leading me to believe it was more of a temporary measure to immediately comply than a permanent change.