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My Google-fu led me to the same conclusion but I could find nothing that I would regard as definitive either way.
I assume that the next step is to buy a small amount and try some test cuts?
Had to drill through some thick bowls, tough and slippery and very very heat resistant (obs).
Killed some decent tipped hole saws, carbide next time.
No idea about lasering. Good luck. R
Ps. Have 640mm printer Base in and bearing mount set up. Real progress.