The tautology error in the sentence is the phrase "globally popular drink." This phrase is redundant because the word "globally" already means "popular all over the world." Therefore, saying "globally popular" is like saying "popularly popular."
The sentence could be rewritten as:
First launched in the USA, UK and Australia in 2022, Prime's availability caused major excitement among Gen Z customers, resulting in thousands lining up overnight to get their hands on the drink which has now become a viral collector's item around the world.
In this version of the sentence, the phrase "globally popular" has been removed, and the sentence is now free of tautology errors.
Here are some other examples of tautology errors:
"Free gift" "Absolutely unique" "Completely unanimous" "Truly authentic" "Surprisingly unexpected"
Tautology errors are often made when people try to be too descriptive. However, it is important to be concise and to avoid using redundant language. By avoiding tautology errors, you can write clearer and more effective sentences.