Leveling multiple classes during MSQ?

[LianaThorne]

It really is an up to you thing though. The MSQ is a great way to gain xp and rush a class to end game so thats why people will suggest just using all of it for one class. I've also known of people who level all of their classes to level cap for each expac before starting the next so they have options to pick from in case they're bored of playing just one class.

In a nutshell, MSQ will absolutely have you hit level 90 on one class before the end of Endwalker. If you spread it across multiple, you may need to use other options to level if you don't at least hit the req to start each expac. So, depends on what *you* want to do ultimately and if you feel the need to use multiple classes/are okay using dungeons to level.