the problem is, palworld isn't "pokemon with guns", they used that slogan originally sure, but palworld 100% shows more similar mechanics and concepts to ark then pokemon, it's a mix of pokemon style mechanics and Arks RPG mechanics. I would say they had a stronger suit against trademark than they did mechanics side.

The only game mechanic similarity between the two is the ball capture system and the fact that it's called a trainer/leader when you battle the NPC's anything else is already present in other games.

By this logic, any game that features the ability to tame or capture monsters would be a pokemon clone. That's far too broad of a category to allow as a patent if challenged. I personally believe it will result in them losing the patent as a whole if it is that patent they are fighting with.