As for the rest it seems for me that cheaper (“non-smart”) HomePod style speakers are pretty prevalent at least in higher income countries
[1] https://www.strategyanalytics.com/strategy-analytics/news/st...
The canonical shitty speakers that almost every studio used for years was the yamaha NS10.
They were used because of their limited frequency response and dynamic range. When mixing the engineer would switch between the good speakers and the Yamahas. The reason is if it sounds good on the bad speakers then it will sound good anywhere.
It’s not necessary to test mixes on every conceivable speaker, but a couple of different types should satisfy you that it’s in the pocket.
> Misunderstanding also tends to breed misinformation, which is often disseminated by well-meaning amateurs: those whose knowledge of a subject is sketchy are always prey to the intuitively plausible but utterly wrong explanation for one phenomenon or another.