Recently I discovered a really cool plugin for Figma called "Workshops" made by Keaton Price. It will help you with post-its, dots for dot voting as well as commonly used frameworks like 2x2, 3x3 Matrix, Bullseye, or 3 Lines.

The even coolest part is the built-in timer. Super useful if you're asking me because you will need a timer when running a "Design Thinking" session or workshops and it's even better if you have all of these in one place.

Get the plugin here.