QGIS export circle to KML then import to Google Map

I am using QGIS version 3.14.0-Pi.

In QGIS, I display Google Map, with the XYZ tiles. In QGIS, on a Project using EPSG:4326, when I draw a circle, this circle is a real circle (not an ellipse). Then, I export the layer containing this circle into KML. In Google Map ("MyMaps"), I import the KML. Google Map displays this circle as an ellipse; not a circle.
I tried to export the QGIS layer to KML with different projection systems:

EPSG:3857   -- WGS84 Pseudo-Mercator
EPSG:4326   -- WGS84
EPSG:900913 -- Google Maps Global Mercator

But Google Maps is always displaying an ellipse, not a perfect circle.

Does anybody know what is the way to export from QGIS a perfect circle and import it and display it into Google Map as a perfect circle?