There are a few more products now or at least a couple. You probably know of them. Boreal, it’s fly ash and poly glue mixed together sold as eco friendly as the fly ash just gets buried. It’s a bitch to work with die to the massive amounts of dust it throws. It also destroys blades. The hammer mushrooms are Out of control and it’s also brittle. But it stands nice by comparison to Azek and makes the installer look like a real pro if he stands all his joints properly.
Then there is this wood impregnated with some chemical. It’s not PT comes more primed and looks nice. I won’t speculate anything about it as I have never used it. But yes ore primed trim boards are just airbags and i refuse to use them. Then I could hardly afford custom killed mahogany trim for everything. And then you know I personally don’t want a final sided house. Nor do I want the paint And rot repair maintenance Of a typical painted New England home. Like you this was my compromise.
I’ve done full exteriors now going back well over five years “like the whole house, both new and old” and generally the stuff looks good. It’s not perfect but it’s problems are much less than crap pre primed presents in our area.