You could probably make a new thread… my reasoning being…
It doesn’t actually mention FM synthesis on the front panel, rather it’s called a “Polyphonic Digital Synthesizer”. My expectation is that they would like to add other forms of synthesis into it, they probably don’t want to promise things that don’t exist at launch.
The block diagram on page 13 of the manual makes it even more explicit by referring to the FM block as the ‘audio engine’, I guess one should look to the Monomachine for ideas.
Back to the subject of FM, appendix A in the manual goes into a bit of depth on how they’ve structure their FM implementation. You don’t seem to get full control of each of the 4 operators, which is not to say that the controls have been dumbed down.