Yes, these are some of our most popular played games online today. The games are largely PVP, as with most played competitive titles. Sea of Thieves pvp meta is still being discovered.
All of those games are entirely arena and have no where near the polish or content, or technologies that Sea of Thieves has employed. Grab a crew, have a ship battle in a middle of a hurricane and tell me you see that level of world dynamism in other games - save you some research here, they don't. Sea of Thieves is entirely what you want to make of it. The game purposefully limits players, making coordination, preparation and strategy paramount to your success. Defining success is entirely up to you. If you want the best loot in the game, chances are, unless you are lucky, you're going to need to fight for it.
It's a cheap trick to lull players to actually play the game more, in which in that process (carrot on the stick) they actually get better at the game and actually enjoy the secondary and tertiary gameplay loops that developers have designed for them.