Welcome to the Ark Grind! i'm curious what version of xbox? if its the xbox one X then you should be good. i started playing on PC years ago and i assumed it would look awful on console. i eventually tried it out on my ps4 pro and i ended up playing for months on console. i didn't notice a huge difference in terms of graphics but you will experience frame rate drops or crashes when going by large bases.
i recommend the Island for all beginners. get a good feel for the game and then when you have a good grasp of the game start a second character on another map. You can share tames a