The labeling on those axes is horrific. A human is apparently about 7 units of "Large" on the "Size" axis, and can piss around 110 units of "Jet" on the "Shape" axis.
What is 7 units of Large Size you wonder? Fuck you. What is 110 units of Jet Shape you ask? Hell if we know. You sure aren't going to.
What are all the unlabeled dots? Who cares. Sample size? "I saw one do it."
If you go into the settings, you can choose to hide some types of quests. Turning off the ones about road surface material, for example, can reduce the repetition a lot.
It substantially improves the issue I think you are describing by collating address data from OpenAddresses and making that available in the OSMAnd search.
That is a weapons-grade life hack right there.