Looking at Wikipedia, Crossovers are a separately defined vehicle:
> [Crossover Utility Vehicle] is a type of automobile with an increased ride height that is built on unibody chassis construction shared with passenger cars, as opposed to traditional sport utility vehicles (SUV) which are built on a body-on-frame chassis construction similar to pickup trucks.
They're often conflated as "crossover SUVs" both by car manufacturers and by the media. E.g. if you search for something like "best SUVs of 2023", half the vehicles listed in the resulting articles will be crossovers.
It also gets confusing because the biggest crossovers are built to the same bulky shape as the traditional SUVs that are killing everyone - just without a body-on-frame construction.
> [Crossover Utility Vehicle] is a type of automobile with an increased ride height that is built on unibody chassis construction shared with passenger cars, as opposed to traditional sport utility vehicles (SUV) which are built on a body-on-frame chassis construction similar to pickup trucks.