I really don’t think that Cristiano Ronaldo has any plans of moving to Roma. If he clearly has to move I think he has better options instead of Roma. He can move to better teams that are playing in the champions league competition. So, I think this is just a baseless rumor.
Even for Bayern, his salary requirements are high, so Salihamidzic denied the possibility of Ronaldo moving to Bayern. It's clear that the possibilities of Roma are even less. So yes, it was nothing more than a rumor.
I actually believe that Manchester United doesn’t have the option to give up Ronaldo because he is the only player who performed really consistently in the last season from Manchester United. All the other players are either inconsistent or not performing well at all. Ronaldo has taken Manchester United out of the situation of a certain loss many times. So, Manchester United does not have the option to let Ronaldo go.
It's funny how the situation has reversed - at first everyone was afraid that United would get rid of Ronaldo, but now Ronaldo is close to leaving the club (according to rumors) and United are trying to keep him. The problem is that Ronaldo has big ambitions, while United, despite big plans, is still pursuing a weak transfer policy and it is not clear how the club will be strengthened.