I would disagree. I have both and use each for different tasks.

OSMAnd is clunky and unintuitive. I have learned it well and have it setup for land navigation type stuff. It’s incredibly good at displaying every last detail of the topography.

Organic Maps is fantastic for city navigation. It’s smooth and quick and ever since the addition of turn-by-turn voice navigation I’m in love. I use the Sherpa Onnx voices and they sound so lifelike.