Obviously I haven’t seen the movie so I don’t actually know for sure, but I would expect it to be like Infinity War where you also didn’t need to have seen everything that came before it, but if you have then you’ll probably notice things from those films.
As an example in the opening of Infinity War we find Thor, Loki and Hulk in space. Is it required to know the events of Thor Ragnarok in order to appreciate Infinity War? No. But is it a bonus to know what Thor, Loki and Hulk were up to? Yes.
They’re not all crap, but no.
Obviously I haven’t seen the movie so I don’t actually know for sure, but I would expect it to be like Infinity War where you also didn’t need to have seen everything that came before it, but if you have then you’ll probably notice things from those films.
As an example in the opening of Infinity War we find Thor, Loki and Hulk in space. Is it required to know the events of Thor Ragnarok in order to appreciate Infinity War? No. But is it a bonus to know what Thor, Loki and Hulk were up to? Yes.