It's time to decentralized Gmail, Youtube, and Google Docs, maybe their Search Engine too.
Right from "The battle of the red cliffs", we will never learn the disadvantage of lashing too many boats together.
We have IPFS, Blockchain, dat protocol today. I think it's possible to kill the giants.
Even, Tim Berners-Lee want to decentralized the web: https://techcrunch.com/2018/10/09/tim-berners-lee-is-on-a-mi...
While it went OK-ish for the internet, we massively screwed it up for the web.
What isn't decentralised is web apps but TBL never intended the web to be used for full blown desktop app replacements in the first place so no surprise it doesn't meet its design goals for that.