My question was: do we have evidence that warm weather slows Covid outbreaks?
So far, the answer is “no”, and asserting anything else is not an argument, it’s a made up story.
It's a bit of moot point though. Because of the extremely plausible nature of the idea that covid might have some temperature dependence, there are many people investigating this specific claim. With a cursory web search, you can find several papers and pre-prints on the subject, a small majority of which find evidence to support that trend.
Saying that temperature can't affect covid transmission because Singapore is having a tough time is akin to suggesting climate change isn't real because it snowed in April. It is just one data point.
Nearly 100x less than the global average for case fatalities. For all these people testing positive no one is actually dying, most don't even have symptoms.