No, GET whatever you want, and whatever you can afford … and fits your lifestyle & needs
But whatever you end up getting, take some time to research this choice, and make a decision based on your needs …
But please, once you have decided, and taken the plunge, own your decision, and do not whine and cry because it does not allow you to do what you want.
Absolutely!, I use MSFS on PC, and I never think about 8k, there are 1000 more important things. before 8K. I use Xbox Series X for games, and works fantastic, for that price, it’s very impressive, and no need for 8K, unless, maybe, you will use a 100" screen