Honestly, as soon as Google Voice (and its integration with the languishing Hangouts app) support breaks, which I fully expect to eventually happen, I'm jumping off the last of the Google boat. The inertia of "all my friends can at least contact me on this number that follows me around carrier-to-carrier" is the only reason I haven't stopped using Google services almost entirely:
My searches are DuckDuckGo. It's even more useful than Google for image searches because it still has a "View Image" link.
My primary email is now a private provider. The old Gmail account is kept to not miss old contacts reaching out and as a dumping ground for "sign up with your email so we can spam you forever!"
My online storage and backup is private, paid, and encrypted. There are still a few public links in my Google Drive, but I no longer use it day-to-day.
I can't remember the last time I actually needed live collaborative editing for work. I still use Google Docs/Spreadsheets occasionally, but I'm mostly collaborating with people elsewhere in the world and I wake up to see their edits/comments the next day. I'm not sure this bit even needs a replacement.
The last holdout is that sticky Google Voice number. I woke up one day a year and a half back and thought to myself, "you make real money now. You signed up for Google's free services all the way back in high school (when you had to have an invite for Gmail). You can afford paid services for these things, and the paid services are just as good. Why are you still giving Google more of your info than they would otherwise vacuum up?"
The fact that Google's "fix" for its own ADHD concerning chat/message platform(s) has no encryption is enough for me to say, "Nope. Done. Get me out of there once and for all."