I got Alpha in Dec 2020, and nothing since. My immune system is shot due to a previous health condition and I usually catch everything going.
So either, the subsequent variants are not serious enough to make me feel unwell enough to realise I have covid, or its really just luck of the drawer and no mask wearing will make a difference given masks protect everyone else and not the wearer (unless wearing FFP3)
My Dad had covid in Dec 2022 and he has COPD and asthma (and smokes 😡) and he was fine and back to normal in less than a week. At 70yo his risk is still incredibly low after all.