I didn't realize it ever was considered a winter virus? I thought that's what made it so dangerous, is that it wouldn't cycle like the flu does.

It never has been just a winter virus, its still wave after wave and doesn't seem particularly interested in a pattern. There has for a few years been a vague summer and winter pattern but then this year its mostly just hit a wave in Autumn. Its still doing its pandemic thing with new variants, immune waning and events being the driving force of new waves.

People are just inside more and closer together in the winter. Since work places don't want people staying home when sick, and most people are too big of assholes to wear a mask when sick, it spreads

Well I've caught it twice. Both during summer time. So, uh, duh.

coronavirus that caused the Covid-16 pandemic

Uhhhh, is that a typo?

it seems we are going to be perpetually sick from now on. at least it seems that when i recover from "flu" i just get sick soon after at least in some capacity. And everyone else seem to be coughing everywhere.