10 Letter Wordle is the longest English mode on Onlinedle. Ten squares, six rows, one long word like university or experience.
The answer pool is small for the length: 582 words, against 45,872 accepted guesses. Nearly every answer (95%) repeats a letter, and E and I each appear in over 70% of them.
A good first guess can light up half the board, so the hard part is placing letters, not finding them.