Kimchi is definitely good for you. It is a healthy food rich in dietary fiber, vitamin C, β-carotene, β-sitosterol, chlorophylls, phenols, lactic acid bacteria (LAB), and minerals.
There have been studies suggesting that kimchi can protect against ailments such as colon cancer. Scientists treated cancerous mice with the methanolic extracts from different kimchis, particularly 1.89 g/kg of anticancer kimchi, which significantly increased their colon length, decreased the ratio of colon weight/length, and resulted in the lowest number of tumors (see https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4126272/?fbclid=IwAR3aJDzBpHYd0x6XkSXJyehnaZarASt0R0bpYFoF_uVupRfsfsUgavmU_AA ).
But does eating kimchi help protect against the coronavirus?
This youtube video news report says it does and the lactic acid bacteria in kimchi is the key: https://youtu.be/nY6w3Rhz33Q