It's interesting to see more people embracing the patch-stack workflow! For those interested in using the patch-stack workflow, but not ready to change to sapling, git patch stack would be worth checking out.
This workflow sounds similar to the one we use at my company! I use the git-ps tool we made to make stacks of usable micro-commits, and using the tool to keep things logical and working as things change and the code develops. https://github.com/uptech/git-ps
https://git-ps.sh/