How do I get this AI warp look on my videos?

I have seen a youtuber by the name of "Jemartob" who makes edits, etc...
And he expands the sides of his videos with this seamless AI warpy well blended auto fill.
But It also seems as if it isn't just for autofill, as it appears on his videos randomly aswell.

I have been looking everywhere for this and I can't find any solution.
I have no clue if it's a plugin, different software, or something hidden withing after effects.
If anyone knows what this is please tell me, thank you!