Hello, I have some proposals that I hope will make sense to you
While both text tools work correctly I think that having the Fluid Text Tool with the latest changes I think you can leave that tool only to simplify, since it serves both purposes.
It would be great if the Select an Object Tool (arrow) is selected and when you double-click on the text it allows you to directly edit it, to avoid having to go to the appropriate text tool for editing the text.
What I think is that the properties panel for the fluid text tool is limited, italics (I) and Bold (B) and the color ... I think it should look more like a text editor, in which you can also align the text to the left, right, to the center and justify it, underline and cross out and Font Size, ordered and disordered lists. All these text formats are very important at the time of giving a class, since they allow to highlight texts and errors as well.
It would be great if you copy and paste text from a text editor such as OpenOffice Writter, Word, Pages you could keep the format of the text in these basic properties.
The fluid text tool allows you to transform (scale only horizontally) when you drag from the nodes of the corners + SHIFT would be ideal to scale proportionally