Nope, exactly the same. FM is Frequency Modulation which is what you can do with oscillators and the above mentioned envelope points.
Whether it’s a sine wave, a waveform, a bass line, a kick sample, a sawtooth, a square wave, doesn’t matter.
These things have been solved in the late 70s by Yamaha’s DX7 and Moog.
What most people find confusing isn’t the ADSR but the fact that there are multiple oscillators each with their own volumes and patch bays, inputs and outputs.
At the end of the day, they are all very much the same.
Sound Gen/Sample -> ADSR -> Filter chain -> patch out -> in -> master out.
Whether it’s a sine wave, a waveform, a bass line, a kick sample, a sawtooth, a square wave, doesn’t matter.
These things have been solved in the late 70s by Yamaha’s DX7 and Moog.
What most people find confusing isn’t the ADSR but the fact that there are multiple oscillators each with their own volumes and patch bays, inputs and outputs.
At the end of the day, they are all very much the same.
Sound Gen/Sample -> ADSR -> Filter chain -> patch out -> in -> master out.