Hi, I had a problem while I was trying to do this gradient.

I choose the text and I put them one on top of the other, but this happened, and I just wanted to do the gradient like one, not like 3 separate letters.

Info: They are grouped, I don't know if that does something

Thanks for the attention!!!

Try ungroup

>object to path

>select all and combine

then try gradient?

Click on the leftmost gradient node, apply 100% opacity (bottom right of the window), then give it a grey color.

If you don't mind having 3 separate letters, follow @sBassNvydr advice, I suggest to unify paths (Ctrl +) instead of combining them (ctrl K).
Still keep in mind the lighter part is not grey, it's black with a high transparency.

Thanks for the help, it worked!!!

There's no need to leave the Text-object - just make clear you don't have any transparency in your gradient: