I wanted to render something dynamically, but I didn't see my rendered stuff, so I debugged the Coordinates, this is what it gives me: x: -0.03990672892132352 y: -1.6200000047683716 z: 2.980314897103767 while static gives me this: x: -392 y: 4 z: 244 Whut?

This is correct TESR coords are based on the player, not the world.

how can I get the proper Coords? hostTile? Does the TESR give those coords in its own method?

Silly person, learn to TESR.