Possibly worth mentioning the sun-burst rays.
In Gimp 2.8 one way was the line-nova script. This is missing from Gimp 2.10 menu structure but at the moment is still there if you use the search / (forward-slash) key example:
https://i.imgur.com/teCg47D.jpgAn alternative again from Gimp 2.8 days was a sunray script, a bit more flexible than line-nova and a bit more hands on. It makes a selection, up-to-you to fill it. (or use it to cut out). Script attached, example:
https://i.imgur.com/BnpfnnO.jpg Registers in a strange place Tools -> Selection Tools -> SunRay Pattern.
...and much more recent. The gmic plugin:
https://i.imgur.com/T4DhH3Z.jpg