Facebook IS losing a lot of attention however they are lucky that they grabbed whatsapp and instagram at the right prices. As far as I remember they IPO'd facebook at around 100 billion dollars in value, think about it, a social media platform that worth 100 billion dollars makes no sense at all, it is like buying a 100 billion dollar car, it will eventually lose value so why spend so much money on it ?
They bought whatsapp which basically doesn't lose value as long as people keep talking online with each other so I assume whatsapp will be relevant for long long years until a rival could dethrone them. Instagram is still great on social media level but like I said about facebook, that will slowly fadeaway and a new one will come eventually.
Facebooks crypto move would only be interesting so we could see if they could revival facebook by using crypto as a system to attract young people again.
I think the young people (the so called zoomers) aren't using Facebook at all anymore, or barely update it. Even millennial aren't using it as much anymore that I know of.
Older people keep in contact with other people through Facebook and share a lot of content there, but I think Twitter and Instagram are the future when it comes to social media.
However the real value in Facebook is all the spying an data mining they do, they can offer all that data to triple letter agencies and other entities which would make good use of that.
Zuckerberg has also expanded into the VR business buying Oculus. I think VR will be big within the next decade with the improved headsets.
Overall I wouldn't be too worried about Facebook for now, they should be doing ok. However this crypto without Bitcoin thing is dumb.