It was called Twitter for 17 years before being renamed in 2023. The Twitter domain still redirects to roughly the same site it was for all those years.
Why does it matter if someone still calls it Twitter?
Cause X is a stupid name
And twitter isn't?
No, it isn't. Twitter was absolutely brilliant marketing. It perfectly encapsulated what the site was at the time.
X is just a letter the current owner likes. It has absolutely no relevance to what the site does or is for.