Are the hidive subs for oshi no ko okay?

When I watched another series they had (I quit heroing) there were significant differences from what was being said and plenty of grammar errors

At this point protag has pretty much everyone on a leash, how will this develop? <.<

Ok I need some help here

I played the original fate and then hollow atraxia, then watched fate zero... is there an anime that continues the OG story, or are they all alternate timelines?