You're extremely dishonest.
That's right, you need to be calm to use FS. So, in the only instance where Luffy was clearly shown to be calm and used it against Katakuri he managed to actually dodge his attacks, but he then lost his composure and jumped Katakuri, resulting in losing control over his FS and getting overwhelmed. That was the only real instance where Luffy managed to use FS to an extent, afterwards he just went Snakeman and relied on his speed to match blows with Katakuri and win the battle. Katakuri didn't "beat up base FS Luffy" like you've been claiming because Luffy only figured out how to use it and lost control almost immediately during that scene.
Marco pushing back Admirals and tanking their attacks means nothing, but Luffy punching and kicking Fujitora who is just casually standing there and blocking his attacks and has no intent of harming Luffy(easy to tell, especially from his inner monologue right after he sends Luffy away)means he "fought an Admiral". You're also ignoring the fact that he just sent Luffy flying the moment he felt like it.
And that "bruise" bullshit means nothing, since that "bruise" literally disappears the very next page as I've proven by posting the whole chain of events, but yet again, you completely ignore that fact and continue to act like he actually harmed an Admiral in any significant way.
Actual combat is the best way to improve Haki. This shit is basic:
Luffy was shown using FS in Wano before the rooftop. He obviously honed it and can now fully control it unlike WCI Luffy who managed to pull it off properly really only once. Luffy was literally shown using FS in Udon while being barely conscious:
Ulti grabbing Luffy has nothing to do with him being "incapable" of using it. He just doesn't use it constantly, since you can actually run out of it. The only thing on his mind was reaching Kaido.
You've addressed nothing, really. If anything you kept on contradicting yourself and being an overall hypocrite.
It's not that we're reiterating the same shit, but rather because you literally won't address it. Just like you did when I posted Luffy using FS and successfully dodging Katakuri's flurry of punches, you proceeded to post the aftermath of Luffy losing composure and control over FS, hence, getting battered and somehow used it as evidence that "Katakuri beat FS Luffy". This is just one instance of you doing that shit. You just cherry pick every instance that suits your agenda and proceed to ignore everything else.
Now, I am truly done with this. I'm not here to educate you.