Oh for goodness sake are people still banging on about this? As others have already stated Covid is a virus with many variants the same as the common cold and flu (among many, many others), sometimes people will catch them mildly and sometimes severely.
I had Covid and was fine apart from a dry cough, just worked from home and kept out of everyone’s way, last year I got a bout of flu and had to have a month off of work, it floored me and I am as healthy as a horse no underlying health issues, healthy weight, healthy diet and work out five days a week.
My elderly mother caught Covid and didn’t even have any symptoms but was hospitalised with Norovirus.
Yes covid can be serious but any virus can be serious so thankfully the majority of people are now viewing it proportionately.