Palworld is adding external anticheat, but it will only be required for official servers. Community servers, single player, and coop will have it be optional.
We don’t know yet if the anticheat will be compatible with Linux yet, but the options to not use it means that it shouldn’t be too disruptive either way.
Yeah, I don’t think it’s sustainable for most games to provide enough new content to keep playing them forever. It’s a much healthier content cycle for both devs and users to play other games once you’ve completed the existing content and lost interest. Personally I don’t even usually play through larger single player games without taking long breaks. As soon as I start to feel fatigued with a game I’ll switch to another title in my backlog for awhile, and then return a few days or weeks later to finish the first game.