Current Miro shapes lack full text formatting support, such as bulleted lists. Comparing to Obsidian's canvas, Miro could borrow some great ideas for improving the user experience.
Markdown support has been requested multiple times in this forum, but I want to emphasize that the ability to format text without having to move the mouse is a major productivity boost. This would also be helpful for formatting code.
At least, before markdown support, a full text formatting support in shapes (as text does) could help a lot for “more content rich” shape.
