> I think it’s worth noting that (at least I believe) the reason apple limit the usage of other browser engines in iOS isn’t (mostly) about maintaining control and dominance. It’s about battery usage,

I disagree with this word gymnastics, it is Apple-ogism. It takes just a brief look at other decisions they've made to easily see that it is about user lock-in which fits in with their general philosophy. It is not great that they are stifling innovation at all, conflating it with browser dominance is a separate thing.