There are no objects in Gimp, only layers. In this tutorial, each letter is a separate layer (while the typical usage is that "Layers" would be one single layer).
See the Move tool options (Tool options dialog). Auto-selection is an option than can be enable/disabled. Furthermore, by default the Move tool picks the topmost layer which is not transparent where you click, so you have to click on the letters and not near them if you want to move them. You can use "the "Move active layer" by checking the option in the options dialog.
See the Move tool options (Tool options dialog). Auto-selection is an option than can be enable/disabled. Furthermore, by default the Move tool picks the topmost layer which is not transparent where you click, so you have to click on the letters and not near them if you want to move them. You can use "the "Move active layer" by checking the option in the options dialog.