It just feels like we’ve had little to zero buildup leading up to Doom becoming the big bad of the entire multiverse saga and his first appearance is the film right before Doomsday… Thanos had a well deserved impact after making constant cameos and appearances throughout phases 1 thru 3 and I understand it was supposed to be Kang as the leading villain of the saga but even feige and the studio planned to have Doom since the start as well