Can I request to join a match where my level is not within the match span?

No, Nettla currently does not offer this functionality, but are hoping to add the feature in during Q2 2026. In the meantime, if you want to play a match with players who are not within the vicinity of your level, you can create a private match and select "Suggested" level during the creating process. A suggested level setting allows any player to join the match.