A ready made UI kit can be helpful to speed up the creation of a new design. It can also make your early design process more consistent, because you are relying on a framework of elements that already have gone through some testing.
Free Figma UI Kit
Buttons, Tags, Input, Typography, Colors, Notifications and many more for your design.
Everything you need to design your landing page. It is designed for both mobile and desktop, with a light and dark theme.
Figma Material Design UI Kit with modern desktop templates, dashboard (light and dark), and Material Design components and UI elements.
Design System for Web (Desktop and Mobile) use that I have prepared as a Side Project.