Is there a level 0 in DND?

Players at 0th-level have the following features: You begin play with -100 XP. Do not choose a class: you begin play with only your racial and background features. You have 1d6 Hit Dice.

https://www.dandwiki.com/wiki/Level_Zero_(5e_Variant_Rule)#:~:text=Players%20at%200th%2Dlevel%20have,You%20have%201d6%20Hit%20Dice.