Each holiday.com eSIM is for single-device use only and cannot be transferred/reinstalled if removed/deleted. Once you download it, the eSIM becomes permanently locked to that specific device.
If you wish to get a new eSIM to reinstall on your current device or use on another device, you can learn more about how to purchase a data plan/bundle for another eSIM. Following this guide will create a new eSIM profile that you can install via a QR code.