Game Engine/Library that supports Integration with QML GUI

[Rick_Y]

Hello,
We are building a QtQuick desktop application that also features a game mode.

At first, We looked at C++ libraries for 2D graphics, such as SFML.
But SFML only provides integration with QtWidgets and not QtQuick. However, it might be possible because I saw an example of OpenGL being rendered under a Qt Quick scene.

Then we searched if it was possible to integrate QtWidgets into our Qt Quick app.
turns out it's only possible to integrate QML into the QtWidgets app but not vice versa.

V-Play/Felgo doesn't come under an open-source license. So that's not under our consideration.

Any recommendation? We are beginners so we really want to shy away from anything requiring very low level/vast knowledge of game engine mechanics.