Yes I would.
Well Guardian of the galaxy 2 is meeh, not as good as 1 so no need to watch it.
However Thor Ragnorak is a must. I am not a fan of the Thor franchise, but Ragnorak is hands down the best Thor movie to ever be created (in my humble opinion). It’s less dark as it is directed by Taika Waititi, a director from new zeleand who is well known for dirceting light/funny movies. It has a weird Gurdian of the galaxy vibe as well, unlike the other Thor movies. The villain and the story line is pretty good. And Tessa Thompson as valkeriye was my fav thing about the entire movie. They mix the light with the dark in a good way, and I like how the ending is not a stereotypical ‘happy ever after’ ending.
I also think Ragnorak will be important in order to understand whats going on during Infinity war. It explains the eye-patch Thor is wearing, why his hair is short and it also hints at why Thanos is after Loki (as well as the ship we see in the trailer when the guardians meet Thor).
I would deff advice you seeing Thor Ragnorak.
did u just write an essay about a movie recommendation? wow we got some bright people in our ranks