The text tool is also easy to use.
Creating Stickers in Paint 3D
Stickers are found within theStickersmenu at the top.
Choosing that menu reveals a sidebar on the right of the program.

you might also make your own stickers from an image.
The 2D text tool also lets you add a background fill color to instantly add color behind the text.
With both 2D and 3D text, click outside the selection box to save the changes.

This means you’re free to highlight part of a word to have just that selection changed.