To further the renaissanceRenaissance connection, it’s pretty clear in the longer versions of the film that the pugs were the dogs of the court. Lynch did the full court procession/entourage with ladies in waiting, court dwarfs and advisors as part of the film’s aesthetic. You see similar depictions in period dramas like the movie “Alatriste” when the Court of Spain meets envoys from England - dogs and all. The way I saw it, Patrick Stewart’s Gurney was making his last stand as the Atreides were under seigesiege. As the dogs are representations /symbols symbols of the court, he’s both protecting them and going into war with them at the same time. I know it’s always looked strange from a movie goer’s-goer’s perspective, but from a historical point of view, it’s quite touching. I always loved PS’s portrayal of Gurney, and the scene where he’s reunited with Paul literally brings tears to my eyes.