Add a layer/tile to the map

Hello !

I'm working on a project with Mapbox and I'm looking for a way to import a layer or tiles to my map, like this exemple (in JS) : https://docs.mapbox.com/mapbox-gl-js/example/adjust-layer-opacity/

So here is my complete question : 
Is there a way to get a x*x square (or cicle) layer/tile for a given position and display it over a map, at the correct coordinates ?

Thx !