If the MCU would have adapted the capabilities of the Reality Gem from the comics (opposed to the questionable powers we have seen from MCU Reality Stone), which on-screen Reality Warping powers would we have seen if one of the heroes would have wieled it (or would have received powers from it like Carol Danvers)
Don't just throw the "control everything"-card because screenwriters and directors would avoid that, so a specific set of abilities only and how they would be portrayed on-screen
Maybe powers like:
Molecular Combustion
Power Negation
...
