I've seen questions here and here and also tried googling but it's still kinda confusing to me. Is there any difference between the meanings of "a meeting" and "a meetup", and when can/can't I use one or another?
Learn English – “A meeting” vs “a meetup”
meaningword-choice
Best Answer
A meetup is less formal, which tends to be of less importance.
A meeting is the appropriate word and tends to be of greater importance.
You can see a meetup as an informal reunion with not important results at the end of it, and a reunion where is more about socializing.
You can see a meeting as a formal reunion where the participants desire an important change at the end of it.
If you can, always use the word meeting.