I did the „convert 3 years of prepaid Xbox Gold into Game Pass Ultimate“ trick. That way I paid 100€ (3x33€ for Gold+ 1€ to convert to GP) flat for three years of Game Pass, which is an incredible deal.
I don’t know what I will do when the prepaid time runs out. I’m enjoying the content, but before I was quite happy with heavily discounted games. I don’t need to play on day one.