Array query param values are serialized with the (non-default) comma separated style

[Styn]

According to the OpenAPI spec the default serialization method of array query parameters is style: form and explode: true (see docs here)
Currently no different serialization methods are supported, so I think going with the default makes the most sense.
This issue came to my attention since .Net Core by default doesn't understand the explode: false style, it expects the default.