Generally all the evidence points to the worse symptoms you have, the more risk there is of long covid.

Ah, see that's not what I've been hearing.

Long COVID most often occurs in people who had severe COVID-19 illness, but it is not restricted to those who were critically ill or hospitalized. People with mild disease and even those who did not develop symptoms can also be affected. In fact, most people with long COVID had mild acute COVID. Adults and children can both be affected, though Long COVID appears to be more common in adults. Researchers do not yet know how common the condition is, but studies have estimated that it occurs in 5% to 30% of people with COVID-19.

https://www.yalemedicine.org/conditions/long-covid-post-covid-conditions-pcc