In terms of the GA , even before the MCU in the early 00s, The Fantastic Four wasn't nearly as popular as Spiderman, Hulk , or the X- Men .
Yeah, F4 was more well known than characters like Iron Man , Ant Man , and GOTG in 2000, but after those franchises took off, they became far more popular than F4 , even though F4 was far more well known than those characters were .
The Fantastic Four has always tended to be more popular in fandom than with the GA , and unfortunately, the prior films haven't helped raise their stature in terms of popularity with the GA, even if the characters were well known .
But , at this point, I can accept that the F4 may not be the biggest box office draws with the GA .
My hope is that the new films are good enough to justify continuing future installments, and that characters continue to be adapted, and the roles continue to be passed down like Spiderman, Batman, Superman, James Bond, etc franchises .