I love Subnautica, spent many hours playing it on PC but the switch port has a hard time handling everything the game presents, frequently the map is "load as you go" and it really messes with the immersion and can lead to some really frustrating moments (flying headlong into a giant mushroom that spawns into the game seconds before you can maneuver). As far as survival-builders go, this is one of the best but the switch just doesn't have the power to run it smoothly