Google “Shattered Earth” Effect tells
us that Google Maps API limits us to 1000 “Maximum number of total
document-wide features”.

I interpret this to mean 1000 polygons (for example) *total*,
regardless of zoom level.

They’re actually usually more generous: routinely loads 3000+
polygons without any problem.

The limit also only applies to polygons on the visible map, not the
whole map: when I briefly modified the page above to have 6000+
polygons, Google only rendered some of them, resulting in this cool
“shattered glass” effect:

Once I zoomed in a little, everything was fine:

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