I mean, I can guess that it’s a weird new Facebook thing. But unless it’s also a new Windows thing hardwired into the OS like the Edge/Cortana bullshit, I don’t really care what FB is up to. :/
I put it in quote marks. Obviously I’m not actually forced to use it, but my entire family uses it and it’s the dominant messaging platform in Indonesia - to the point where people get annoyed with you if you send regular SMS or just end up replying to you on WhatsApp. A lot of businesses large and small also exclusively use it, so you’re causing yourself a lot of annoyance if you actively avoid WhatsApp. It’s a crap situation, but it’s reality in some countries.