Well, for the guy on the couch in Pulp Fiction, his presence set off a chain of events that were both chaotic and influential to the overall story. It's a complex turn of events that you really have to watch to fully understand.
To be honest, the fate of the guy on the couch might have been left ambiguous or not given much emphasis in the story. Maybe he was just there to add to the scene's atmosphere.
In 'Solo: A Star Wars Story', the main bad guy can be considered Dryden Vos. He is a crime lord who has a significant influence in the criminal underworld. He is menacing and is in conflict with Han Solo throughout much of the story.
Yes, there are some 'good guy' Sith in Star Wars stories. Darth Vader, in the end, turns back to the light side which can be seen as a form of being a 'good guy' Sith in a way. He sacrifices himself to save his son, Luke, which is a very heroic act.
Once upon a time, our family was sitting on the couch watching an old family video. We all laughed as we saw our younger selves doing silly things. It was a simple moment but filled with so much love and nostalgia.
I think 'Solo: A Star Wars Story' is a really fun movie. The regular guy might notice how it adds more depth to the Star Wars universe. The action scenes are great, especially the speeder chase. The characters are well - developed, like Han Solo himself. It gives us a look at his early days and how he became the scoundrel we all know and love.
Darth Vader at the end of his story can be considered a 'good guy' Sith. He was a powerful Sith Lord, but in the end, he chose to save Luke and destroy the Emperor, thus turning away from the dark side.
Well, he might struggle to adapt to the new universe at first. But then, he could discover unique powers or skills to help him survive and thrive. There could also be romance and friendships along the way.