You can ask 1000 people and they will all tell you a differant feed n speed, WHY.? . . . Because every machine is differant.

No one tell you exact speed N feeds you'll get away with unless they have the exact same machine and even then material and tool grades play some part.
They can only guide you to small degree based on machine spec which is what I did on the phone, the fact you have removed the machine spec makes this harder for folks to help. (And giving attitude when spec is questioned isn't endering)

Now if it was the same you told me with single 32mm ballscrew using steppers then 3500mm/min will be close to rapid speeds which is differant to what you'll get cutting making things worse. Hence why I told you it would be too slow for cutting MFC or MDF and maintain any decent tool life. The spec you told me was IME mixed up and wrong for any decent machine for cutting wood.

By your own searching you can see that average feeds are much higher so what do you want to hear.? . . Best advise in the world isn't worth a cracker if it's ignored, like wise all the sweet words you'd like to hear don't mean a thing if there wrong. They won't make the machine any better suited.!!