For another example, Singapore, one of the "many Asian countries" you mentioned, list "Chinese New Year" as the official name on government websites. [0] Also note that both California and New York is not located in Asia.
And don't get me started with "Lunar New Year? What Lunar New Year? Islamic Lunar New Year? Jewish Lunar New Year? CHINESE Lunar New Year?".
“Lunar New Year” is vague when referring to the holiday as observed by Chinese labs in China. Chinese people don’t call it Lunar New Year or Chinese New Year anyways. They call it Spring Festival (春节).
As it turns out, people in China don’t name their holidays based off of what the laws of New York or California say.
Please don't because "Lunar New Year" is ambiguous. Many other Asian cultures also have traditional lunar calendars but a different new years day. It's a bit presumptuous to claim that this is the sole "Lunar New Year" celebration.
I didn't expect language policing has reached such level. This is specifically related to China and DeepSeek who celebrates Chinese new year. Do you demand all Chinese to say happy luner new year to each other?