The bug

The tooltips for the selector arguments are inconsistent and sometimes describe their function wrongly.

• distance: Currently shows "Distance to entity", the fact that it doesn't show "entities" (plural) is inconsistent with nbt. It should be "Distance to entities" or "Entities with a certain distance"
• gamemode: Currently shows "Players with gamemode", this is grammatically incorrect and should be something like "Players in a certain gamemode"
• level: Currently shows "Experience level", this is inconsistent with advancements and gamemode. It should be "Players with experience levels"
• name: Currently shows "Entity name", this is inconsistent with nbt. It should be "Entities with name" or "Entities with a specific name"
• tag: Currently shows "Entities with tag", this is grammatically incorrect and should be "Entities with a tag"
• team: Currently shows "Entities on team", this is grammatically incorrect and should be "Entities on a team"
• x, y, z: Currently show "x position", this is inconsistent in regards to capitalization and would make more sense to say "coordinate" instead of "position": "X coordinate"

It also would make more sense to add the word "specific" (or "certain") in front of the nouns, otherwise it sounds like it just needs to have any odd property.