It comes preinstalled on new hardware, and has drivers.

For folks who use odd-ball hardware, e.g., the new generation Wacom EMR stylus equipped Samsung Galaxy Book 3 Pro 360 I'm writing this out on (really, using a stylus to write this out) it's pretty much the only option, which I wish was not the case.

That said, I bought a pair of Raspberry Pi 5s a while back, and am hopeful that the Soulscircuit Pilet I backed on Kickstarter will work well w/ a Wacom One, and if it does so, I'll upgrade to a Movink 13 or something similar.