This is what I mean.

And to further clarify, observer independence is referring to the frame itself not that humans imagine the world into being in the solipsistic sense many believe.

I say this because just a few days ago on this forum someone was asserting that without humans the earth would not exist, that human observation instantiates the earth and the earth did not exist before human consciousness.

What do you mean? That according to relational quantum mechanics absolute reality doesn't exist? But absence of absolute reality doesn't imply absence of objective reality. And it's according to relational quantum mechanics, not according to mathematical formalism of QM.