Yes my husband has. He is a year post COVID and just doesn't feel like eating and when he does he is almost immediately full. down 40lbs
Very discouraging. Have had every procedure and lab done deducted to long COVID.

Yes, I'd lost 50 pounds since 2020 due to lack of appetite. I can taste and smell fine, just does not translate to appetite. The gut-brain connection is broken. I can look at a delicious meal and feel nothing. My stomach never growls from hunger. I have to force myself to eat. Initial effort to gain focused on protein, but I kept losing and was told to add Carbs and healthy fats. Bottom line, do whatever you have to do to trick yourself into eating -- you're the only one that can do it. Find a balance of foods that are more tolerable or easier for you to take in. Whatever works for you. For example, since Covid I can still eat vanilla yogurt, but have a hard time eating fruit flavored yogurts. I can still eat chicken, but don't care for beef any longer. After finishing as healthy a meal as I can tolerate, I have started to reward myself with some form of dessert I can tolerate, like cookies &/or ice cream. I can maintain or put on weight, but it is work.