It includes information on linking and unlinking layers and what transformations you might apply to the linked layers.
This gives you the flexibility to make later transformations independently.
you might’t apply a filter to several linked layers simultaneously.

You either need to apply the filter to each layer independently or merge the layers first.
Open GIMP with your project that has multiple layers.
Turn your attention to theLayersdialog.

It’s in the lower right of your screen by default.
Select theLink Layersboxes next to each of the layers that you want to bind together.
It’s the empty box directly to the right of theeye icon.

The icons look likechainswhen enabled.
With the layers linked together, select either layer and drag it.
You’ll see all the layers you linked move in unison.

Try removing the links by selecting thechain iconsagain.
Then, start moving one of the layers again.
Notice that it’s independent again now.