You won’t have access to multiplayer right off the bat, though.
Is Wuthering Waves multiplayer?
Yes - Wuthering Waves does have a co-op multiplayer mode.

There is only PvE - Player vs Environment.
Before you both hit this level, the game’s multiplayer option will be unavailable.
We’d recommend doing as many quests as possible, since this is the main source of Union EXP.

you might also play with strangers!
From here, it’s possible for you to find other players who are currently hosting co-op sessions.
If you have a friend with a much higher level, they can even carry you through boss fights.
That’s all the info we’ve got on co-op play in Wuthering Waves!