Microsoft aka.ms/phonelinkqrc is a feature that allows you to link your Android phone with a Windows PC to enable seamless integration between the two devices. It enables features like text message syncing, call handling, and notification mirroring on your computer, making it convenient to stay connected and multitask. Whether you need it depends on your preferences and workflow. If you frequently switch between your phone and PC, Phone Link can be beneficial. However, it's not essential for everyone, and its utility depends on your usage patterns.