Yes me too, and it confused me. Does that mean I got all the possible words? I got around sixteen IIRC, but feel like there might be more? I don't know, but that screen is a dead end which doesn't either make that clear or let me go back.

And BTW I'm using Chrome with uBlock Origin enabled here.

The game is points-based, "genius rank" means something like 80% of the possible points have been found.

https://i.imgur.com/dw244XL.png

You can't actually complete the game without paying. I think it's a pretty dark pattern - get the player invested, then block their progress.

I've got that screen after a couple of words. It might be point-based because I swear I got it very early after getting an 8-10 letter word. Other times it doesn't show up for 15ish words.