Ronaldo has problems with ageing and his lack of training, preparation in the summer but he will come back and will play better. I don't support his unprofessional reactions recent weeks but when his mental becomes better, he will play better.
I think the best solution for both Manchester United and Ronaldo is leaving him a chance to leave to another club in the winter transfer. Keeping him in the club but does not give him enough opportunity to play will only make things worse for both.
Aging is unavoidable Ronaldo will definitely face that problem but with big enough ambition to make him believe that he still deserves to play in the highest caste, but that's what we see that Ronaldo doesn't show his professional player so this has led to a lot of speculation that has become crowded, because he wanted to leave or Ten Hag didn't give him a chance, Ronaldo wasn't played from the start, so it all looks again at the age factor because the coaches don't want to play old players.
There are rumors about that where Manchester United gave Ronaldo a chance out in the winter (don't know what happened in the talks with Ten Hag) on the other hand it is always linked with Chelsea being the club he is interested in, but Graham Potter never talks about that he still focus on existing players while rumors about Ronaldo like Potter did not respond to him.
Please save it, why would any coach wouldn't use a player because they are old? Looking physically at his body and some players under the range of 34 years, Ronaldo looks lighter, smarter and fast. What I presume to be the reason why coaches prefer young players is that because they are the future of the club, they can continue to depend on old people. Ronaldo is ambitious and his style of playing with these guys is different to when he was at the peak of his fame, just look at what Rashford was doing during Manchester United against Chelsea, he was sluggish and was never ready, not so hungry type of person for goals.