Contrails exist daily. Chemtrails are disputed heavily. Just pointing at the sky and saying "chemtrails!" to every contrail isn't going to get you anywhere until you can figure out how to isolate chemicals dispersed or have a whistleblower come forward.

That said, I did see a lot of trails in the sky on a very clear day with no negative weather forecast and said that it was going to storm later because of the trails, and it did within a few hours so who knows what to believe.

It's certainly more of a credible subject than flat Earther bullshit, yet every conspiracy theory gets lumped in with that one.