Still not too sure

Is it light pink text on a darker pink background ?
If it is, then try a gradient with the Shape = shaped(angular)
I hope you have a decent size of text, and preferbly a bold font.
Light text in Gimp gives rise to some nasty edge artifacts. With the text layer active.
Select the text.
Layer -> Transparency -> Alpha-to-Selection
Erase round the selection,
Edit -> Stroke selection Using the Eraser tool (edit: remember to use a 2 or 3 pixel brush size)
Now fill the selection with the gradient tool, FG (light pink) to BG (dark pink) shaped angular. There is a center point for a little bit of adjustment.
Then
Select -> None
Maybe it is what you want, if not more details please. example:
https://i.imgur.com/ssvREjn.mp4