You aren't providing any evidence for your arguments, you can't just say it's "basic stuff" and then not explain
why. But I'll go over
your evidence for you just because I'm nice like that.
Okay so the first image is just someone saying they're in a space 3D beings can't comprehend. So it's higher dimensional, but an unknown amount. In the interest of being conservative this is at least a 4D feat.
2nd image is a guy saying time and space are meaningless to him. This could range from "I am beyond space and time" to "I can manipulate space and time to an extremely high degree". After all, a microbe is meaningless to me but I still coexist with it.
3rd image is just saying existence is an illusion, not really a feat for anyone except Azathoth.
4th image establishes that the multiverse is infinite, but that Demonbane and Liber Legis only destroyed "thousands" of worlds over a several billion year timespan, and also establishes them as much smaller than the infinite multiverse. If anything this is a low-showing.
5th image is just a guy saying he'll reach great heights? This isn't really a feat any more than Kamina saying he'll pierce the heavens is a feat.
6th image was addressed in the WoG above, going "beyond dimensions" doesn't mean "beyond all dimensions" as repeated twice.
7th and last image is just repeating that the multiverse is infinite.