Does the final boss get stronger the more people you embrace?

[Stop. Read Dune.]

I remember hearing that like 2 years ago, still have not beaten the game

[Crypto Gamer]

Yes the final boss minimum lvl is 30 and maximum lvl 51.

Your max lvl is 50 likely 25-30 on a no embrace run.

Highest normal enemy is lvl 35 and For boss I think lvl 33.

Only the final boss scales others are fixed.