It's stupid. Every normal (ie not terminally online) person I speak to calls it twitter and is confused if I call it X. For some reason most of them think an "x post" is on instagram too. I guess because influencers call crossposting that?
Most people I know only knows about X/Twitter from the news cycle, it's not something they themselves use, it's just the platform used by journalists, politicians and commentators. It's not a place normal people go.