looking for help trying to get this FM sound

[ADRIENV]

Hi !
I'm trying to get that exact sound, from 00:17s on here https://www.youtube.com/watch?v=8Jse_LXPSr4

almost no doubt that it comes a FM synth, so I'm trying through arturia DX7

there's is probably a chorus effect on which makes it wider, but I'm struggling to make the basic patch of it

any ideas ?