Being an early adopter of tools, one field that I cannot stop trying is the note-taking apps. The spectrum of note-taking apps has expanded quickly over the past 5 years.
What I’m using now:
For writing, I am using Craft. Even at free tier, Craft already support cross-platform sync. Even it's heavily leaning to Apple's ecosystem, Craft does not use iCloud Sync, which means it's faster and better.