pre hijrah muhajirs cannot be sincere believers for 12ers , twelvers will try to be as opaque as possible in their views depends on which scholar you ask even ibn azab or ibn arqam are not forgiven sometimes
Tulaqa were not favorites of Sunnis either esp Umayyad’s were hated by zubayris the proto-Sunnis
but in later generations to put ideological safeguards against Imami Shias ALL companions became holy for Sunnis