I always find it unpleasant when the response is to double down on emphasizing what someone is clearly not comfortable with. And, regarding feeding back to zen devs, surely it would already be understood that adding more Intel content is going to mean AMD users of the zen kernel have more reason to drop using the Zen kernel, as would those who prefer minimal Intel involvement. I can’t see a reason to feedback, as an AMD user, when the issue is Intel patches being added, with no thought as to whether someone is wanting to maintain as clean a system as possible. Pushing Intel and performance, over a more clean option, makes it a straightforward decision to stop using the Zen kernel. Intel may well contribute open source, but open source isn’t always clean, and, as I’ve said above, the Clear Linux distro isn’t reputed to be clean.
I’ll never be anywhere near building a kernel, and my time is needed for other matters, but, if someone has the time and ability to do such things, power to them!