Still waiting for your response on the ring of smoke = FTG in that Kakashi Gaiden chapter

you dodging the question cuz you know you were wrong Lol
I will just re-post the evidence you have chosen to ignore.
These evidences are enough for me.
Kakashi possessing the marking:
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The databook using that image and incident to exemplify FTG:
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The smoke around him:
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The smoke automatically adds to the FTG evidence when the first two state so. It is a pile-on of evidence, in fact, in this case it's laid on thick. If you count the third as incorrect, then you have the first one. Minato not using FTG to save Kakashi is absurd when he states so later himself that FTG usage for the sole reason he left a Kunai with Kakashi. In fact, this evidence alone utterly destroys your thread.
Then we have the Databook and by extension the author choosing only this war incident (two) as a bold example. You cannot play the fool card here, when the author expounded upon FTG using this example. Then it amounts to two explicit facts, rather than one. Add the ring of smoke to it, which by itself isn't a big evidence, then it becomes irrefutable, given that it cannot be a mere probability that the author makes Minato state himself that he left the FTG kunai with him to aid him using FTG, then the author expounds upon FTG using these examples, and then uses the smoke effect.
You never had anything here. I don't know what you think you have here, but it's fan-fiction.