Hello again 
I have a gradient layer (alpha over) above a text layer. What I just noticed is that text layer is slightly affected by the gradient (little blurry), even if it shouldn’t be.
On image below : left side with gradient : affected ; right side gradient deactivated : not affected)
I know there was an issue with multiple text layers becoming blurry, and the solution was to group the layers. I did it in my case too, but it does not change anything.
Is there a quick workaround ? Thank you for your help !