@Don Von Alpha Dom
The way I see things, it looks like workers do their best with what they've got. I wouldn't actually blame them, rather those who make the financial, structural and strategic decissions.
We're still waiting for a dark mode; feed for AP users; the mentioned compatibility between platforms; rational prices offered to third world economies (Netflix, Spotify & Facebook strategy); a modern/fresh design (as we all know, hasn't changed in over a decade); Virtual Reality compatibility... And many more features that shouldn't really be absent in a 200M users social media.
It is what it is.