@automattic/calypso-products/src/is-partner-bundle-onboarding.ts

This module contains information about the various products sold within calypso, such as product slugs, plan intervals, etc.

export function isPartnerBundleOnboarding(): boolean {
	if ( new URLSearchParams( location.search ).has( 'partnerBundle' ) ) {
		return true;
	}

	return false;
}