How do you know that catching COVID doesn't have long-term issues when it hasn't been around long enough to make that determination in the first place?
What we do know is that people in a biological weapons lab at Fort Detrick, Maryland were doing gain of function research by genetically modifying a respiratory horseshoe bat virus with the Human Immunodeficiency Virus (HIV) that causes AIDS so that bat virus could gain the function of infecting the human respiratory tract.
When congress found out about this shit they cut off funding for that extremely dangerous bioweapons research. But instead of shutting down that project they moved it to the bioweapons lab in Wuhan, China.
Getting infected with HIV will cause minor flu types of symptoms in the short term, just like COVID-19, then it goes into latent mode by making itself at home in your central nervous system. That latent phase of the disease can asymptomatically last for years. Then all of the sudden you get a full blown case of AIDS.