what is this little (B) in my typography

It shows that your typography or variable is forced to be bold with a font weight of 700, without changing its values. Its a quick way to make a text bold (Ctrl+B). If you want a bold variable you need to add a String Variable bold in your Variable Panel and set the value to bold. Then apply it to your text style or typography.

Hey Martin, thanks for the reply!

It’s strange though I cannot edit.