Hard disagree. Duolingo is in fact a prime example of an enshittified app that was pretty and fluid and is now clunky and ridden with ads and dark patterns.

I personally find it quite ugly and clunky. I feel like the interface is optimized for children, and the number of ads you have to tap through to get even a modicum of knowledge is quite clunky.

Objectively they have a good team, but I do not think it’s above crticism in either regard.