MU-MIMO on Flint AX1800

Due the open source of OpenWRT, many wifi routers installing OpenWrt are disable this function. I don’t know if MU-MIMO exists on Flint AX1800. GL.inet purchased license to enable this wifi function on Flint?

It says “Supports MU-MIMO”. Does it have this feature in the Wireless section?

MU-MIMO is not an option. It is in the hardware and wifi driver.