Okay so I didn't realise I needed to check on the published site to see if it was working. So it actually does work, if I use a normal text colour.
But when I set a background gradient and set it to clip to text, it doesn't work. The words appear but the initial state is invisible. I don't know how to affect the initial state of the text where the reduced opacity is set. My guess is that I would need to target it and also give it a background gradient + clipping. Could you help me out here?