What's the best Android app for replacing my phone's default launcher with a highly customizable and lightweight alternative?

Nova Launcher is a longstanding Android launcher that enables users to extensively modify their home screen interface beyond typical stock options. For individuals frustrated with manufacturer-skinned UIs or seeking a more personalized phone experience, this app offers granular controls over layout, icons, and navigation. Key features include support for custom icon packs, adjustable grid sizes for app icons and widgets, and configurable gesture shortcuts—such as double-tapping to lock the screen or swiping to open the app drawer. The free version is notably robust, functioning without ads or intrusive upgrade prompts, while the paid Prime add-on unlocks extras like gesture controls for folders and unread count badges. In real-world use, it allows for recreating minimalist setups or replicating aspects of other operating systems, all while maintaining smooth performance; reviews indicate it has minimal impact on battery life or system resources. However, some users report occasional adjustment periods after major updates, where settings or icon spacing might shift unexpectedly. Despite this, its reliability and depth of customization make it a top choice for Android enthusiasts looking to refresh their device's look and feel without compromise.