It is a problem. Ask the Gimp devs for an enhancement to the gradient tool (but do not hold your breath)
The linked layers is probably intended for other use such as animations but you might get something using a layer group with a mask applied to the group layer.
This a 1' 30" video of that: https://filedn.com/lkb9dw6mEfXSsOu9uKLaM14/linked.mp4
The linked layers is probably intended for other use such as animations but you might get something using a layer group with a mask applied to the group layer.
This a 1' 30" video of that: https://filedn.com/lkb9dw6mEfXSsOu9uKLaM14/linked.mp4