You don’t need to make your text and notes in SketchUp! Why aren’t you using layers in LayOut? Things won’t move unless you move them. Put the SketchUp viewports on one layer and your text on another. Lock the viewports layer when you don’t want to do anything that might affect it.
Here’s a sheet from one of my typical LO projects. Every single text entity as well as the dashed and break lines are created in LayOut. I do not use the text tools in SketchUp for these at all. There’s just no need. Nothing moves unless I move it.
