Yes, this is very clear with recent evidence. We still need to understand the gut <-> brain connection and why trials like prozac or precursor supplementation

Yes, this is very clear with recent evidence. We still need to understand the gut <-> brain connection and why trials like prozac or precursor supplementation helps. It is already inconclusive that SSRIs help acute covid, but no studies have been done for long covid. That's what the researchers are calling out here.