Originally Posted by
Vic Vega
Since the beginning, comic book Reed Richards has been defined by 3 things, Scientific Curiosity (does science-y stuff just to do it), monomaniacal focus on problem solving and his love for his family. Those are in order but as time went on Monomania kinda took the number one slot over Scientific Curiosity.
While Reed's Monomania is nearly always focused on positive things like protecting Earth, it tends to make him less likable to modern readers, who wonder why his Wife puts up with him.
This might be a likeability problem for MCU Reed, so maybe they are going to lean into it and make Reed's monomania on curing The Thing. He accidentally messed up his best friend's life and he's dedicated himself to fixing it and the FF only exists to get the money to do said fixing. This would make him way more likeable and even in line with the comics (at least the 60's Reed before Ben kinda gave up on becoming normal).
Otherwise there is a concern that they might pull from the various parody versions of Reed ( Venture Bros., Rick & Morty) and make him a borderline sociopath...