I do not peg that odds anywhere at the moment, but it is clear from the link I posted that there is likely to be a significant figure for those infected.
There would be two levels of concern, one for those who had severe symptoms requiring medical intervention - perhaps a stay in hospital - which I would expect to have higher incidence and more severe incidence of long Covid.
The other would be for the general population - although at much lower risk of death there may be a risk of long Covid.
It means there are still a lot of unkowns, the idea of herd immunity from infection is a very bad idea for now if vaccination is available.
The most extreme nation at present for such an outlook is Brazil, where Coronavirus is now running largely unchecked - some controls in some areas are virtually as good as having no controls whatsotever since the virus only respond to opportunity and not beliefs.
For now we would be wise to assume that slow vaccine rollout, vaccine denial and institutional vaccine delays are all highly undesirable and that vaccination should be the absolute priority - slowing down vaccinations due to political stupidity or false alarms are likely to be harmful to more people than stopping programs based on there merest whiff of perhaps maybes in the face of increasing evidence of short and longer term harm is senseless.
That does not mean that vaccine reactions should not be monitored and investigated, it means were stop playing at Chicken Little with the sky falling in.