Yes they stack. Thanks! You can close now.

Can you stack data disk Swgoh?

Data disks can can increase your stats or perform other mechanics to your characters. They will apply stats and mechanics at the same time as abilities do (not before mods), and they do stack. You can judge the effect of the data disk as if they are character abilities.

Does zealous ambition stack?

It stacks. Zealous Ambition disk is the last thing that is applied to the character, so it still does stack with all of the other disks.