I’ll start:

  • RSS and blogs, news vs. social media
  • XMPP vs. WhatsApp/FB messenger/Snapchat
  • IRC vs. Matrix, Teams, Discord etc.
  • Forums vs. Social media, Reddit, Lemmy(?)
  • Even more frustrating that Chromebooks became a thing. It proved that consumers were ready to buy cheap notebooks with an OS that was basically just a browser and no significant computer power.

    Any user-friendly Linux distro could have filled that role and done it much better IMO. That one always felt like on of Linux’s biggest misses recently. I don’t think it was anybody’s fault either. Google had the resources, the marketing, and the vision to push those, right place right time.