Function in React to check which component should be returned

I currently have the following code:

const renderModal = location.state?.modal ?? isModal ?? false;

const FormComponent = renderModal ? FormModal : Default;

which checks if renderAsModal is true & then returns the Modal component if so (if not, default component)

But now I have another possible modal, which I can check for like so:

const renderCustomModal: boolean =
   location.state?.modal ?? isModal ?? form.key === "UniqueKey" ?? false;

How can I update my FormComponent assignment to check for renderCustomModal as well so my CustomModal can be included in the 3 React components that can be returned? Any helpful links/ best practises would be really appreciated.