As far as I can tell, the only companies doing "manifesto" Agile are startups, mostly out of necessity or out of a preference for agility (which is necessary for a startup) over predictability (which is impossible for a startup). Large companies mostly fail to do Agile not because they are incapable (well, maybe some), but because they don't want to - they value predictability over agility.
If you're about to reply that your Product/Engineering team is totally doing "real" Agile inside a traditional corporate operation, save your energy lol.
Now here is my hot take: Any organization that can reasonably hope to achieve predictability will strongly prefer it to agility and always choose it. This is why Agile never works in established corporations. No matter how much they talk a good game about "disruption", the reality is that they are just hoping to get predictable results.