Great quiz, nominated! I would remove sixty from the ones showing for 'contains an X' to avoid showing an answer for 'contains an X and a Y', making the quiz more challenging.
That was fun! Excluding Y from voweldom withered my soul slightly, but it’s nice to see that playing Wordle every day with my elderly parents has given me a superb 5-letter recall.
https://scrabble.merriam.com/finder/outie