Ronaldo has already said he will stay at United even if they fail to qualify for the Champions League. United is more than just another club for him, so I don't think he will change his mind. Given his age, there is a possibility that we will not see Ronaldo in the Champions League anymore, but I agree with his decision. Let him finish his "big" career at United, and in retirement it will be possible to play in America or somewhere else.
It would be better if that was the case because even if he didn't have any talent in the Champions League, he would seem lacking later on, but again he would have realized that his current age was about to reach the end and of course it would be very bad if he continued to change clubs at the end of a different career. him now.
MU is a team that carries a good name and it is only fitting that he spends his time at the club that made his name