I had covid two weeks ago. Tested positive for three days. Symptoms lasted around four days and were mild - sore throat, a little bit of coughing, snotty nose, and feeling rather spaced out. It's left me with a bit of a dry cough, but nothing serious. I've had far worse 'colds', and tbh pre-pandemic, this is the kind of thing I'd have kept going through.
Everyone I know who had delta was knocked sideways by it. Everyone I know who's had omicron has been relatively ok.
If you've been triple-vaccinated, it is very likely to feel like a relatively mild cold. It's crazy that NHS advice still doesn't fully reflect that, but probably too late now anyway. Once testing is no longer free, I doubt people are going to pay to get tested every time they get a sore throat even if they know that is a major sign - sore throat was my first symptom.