No, but I've only been watching planes since the 1970s.
What part of it is suspicious to you? The part about burning fuel releases water, or the part about where water condenses at cold temperatures?
I know that in the mid '60s, when I first commented on contrails to my mother---"Mama, is that plane on fire?"---planes would occasionally (but rarely) leave short trails that quickly evaporated.
I know that through my school years, when I would see a contrail (again rarely) I would joke with the other kids that the plane was on fire.
I know that when I worked the debarker deck at the sawmill throughout the summers during high school, I never saw a contrail.
I know the first time I saw a trail that didn't quickly evaporate as the plane moved along was in 2007. Never before---not ever, not even once---did I ever see planes leaving thick dripping lines from horizon to horizon. Since then it's practically non-stop.
I know that in all the years I've worked outdoors until 2007, clouds meant blessed relief from the sun. Now the manmade clouds cause magnification of light and heat.
I know I've only seen one movie prior to 2007 that had a so-called "chemtrail" in it.
I know that I never saw haloes around the sun until around 2010, always after heavy spraying.
And I have links to multiple government documents regarding "weather modification" going back to the '60s. I am currently on the road, but I will share them on this post when I return home. But to hold you over, you can search for one called "Owning the Weather in 2025".
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EDIT: Some US Government documents regarding weather modification
(post is archived)