Use case

The Flex widget, despite its name, differs from the behaviour of flexbox in a web setting. In particular, people coming from a web background may be used to using flex-wrap: wrap from CSS, which Flex does not support.

Proposal

Attempt to elide this confusion by pointing to the Wrap widget from the documentation for Flex. Additionally, be careful not to specifically mention the web use case, so as not to further confuse anyone who wouldn't have otherwise been confused.