Android Lock Screen Widget

I was thinking about Android lock screen widgets and honestly, I don’t know much about them. I’ve heard they’re super useful, but I never really tried using them properly. I’m curious about what kind of widgets are available and how people actually use them. Are there any widgets you guys recommend for quick access stuff like notes, to-do lists, or maybe music controls? Also, I’m wondering if there’s a way to customize these widgets or add third-party ones. Like, do I need to download an app or is it all built into Android already? Any tips or tricks you guys have for setting them up or making the most of them would be super helpful.