The stickies in FigJam are a little hard to use compared to Miro. In Miro you can make them as small as you want, which is useful for complex boards. In FigJam, it’s hard to resize them the way you want and there’s a minimum size that they can be even if the amount of text on the sticky doesn’t require extra space.
In the screenshot attached, there’s a lot of space underneath my text that I don’t need to use, yet FigJam is enforcing a minimum size — I can’t make this sticky any shorter than it is now.