Right now in FigJam, you can adjust the width of a single sticky note, or the length of a single line. However, if you select more than one sticky note, adjusting the width also adjusts the height. Similarly, if you select more than one line, reducing the length also reduces the width between the objects.
I would expect these behaviors if I were adjusting the shape from the corner, but not from the side.
Why is this important
Adjusting the width of sticky notes in bulk is just generally helpful if you have a number of notes with a lot of content.
Adjusting the length of lines in bulk is important, especially given that there’s no native table functionality.