
Have you tried adding herbs and spices? Like stuff that actually tastes good. You didn’t even mention salt.
Imho, food that tastes good is more satisfying and keeps you fuller for longer. The downside is, that I tend to overeat, when it’s too good.
Any downsides to eating less meat?
I haven’t been eating meat for almost 20 years now. So my answer is No.

I agree with everything you’re saying.
I think it should have been clear from my text, that imho the issue lies in food production rather than food consumption and that what kinds of food you’re eating and how it was produced is the part of this issue, that you have some control over. I mean, consumers can’t buy what “the marketTM” don’t offer and yadda yadda yadda, but at least you can do more about it than about the fact, that you need to breathe at all. (Apart from drastic measures, that I neither expect nor recommend)