Should Fengyang be isolated from Nanjing?

No need. According to the epidemic prevention requirements of Fengyang, as of September 28, 2022, it has been verified that Fengyang and South Kyoto belong to low-risk areas. According to the epidemic prevention policies of the two places, only 48 hours of negative nucleic acid certificate is needed to go from Fengyang to Nanjing, and isolation is not needed. You can stay in a hotel and travel normally when you come back.