just call it twitter. literally everyone knows what it is, and twitter.com still redirects there so who gives a shit what he's calling it. don't show his site the courtesy he doesn't show to his own daughter.
I'm not a fan of the company, but at least this one has a handful of different platforms underneath it - Oculus, Instagram, WhatsApp, and Facebook. Having Facebook the product and Facebook the overarching company kind of ads a little complication.
I don't quite feel the same way about Alphabet/Google, but at least that's more subtle.
I still call it Facebook. Meta is equally stupid as X. Meta as a word already existed in multiple different ways. Now if you say 'that's meta' you have to stop and think, which may be why I've seen that phrase really die out.
The meta rebranding is not as evil as the hostile takeover of Twitter. So I am inclined to accept that name change but I do not know really what using meta means.
I don't use FB, if I did I would still say FB.
I use WhatsApp and I don't call that meta. I guess the individual products just keep their names here.
There is also the difference that Facebook the service is still called Facebook. Only the company name changed, but not the product name. Where for Twitter, he renamed both the product and the company.