SunFounder PiPower 3 kit is a UPS solution designed to work with the Raspberry Pi 5, other Arm SBCs, or even MCU boards like Arduino UNO and Raspberry Pi
I personally would just spend 10$ more on a mini UPS if I was looking for battery backup as you get way more battery and can work with just about anything. Or a real UPS for 15$ more that can work with multiple devices and a battery that would probably last a pi for a good day.