Define “didn’t work”. Did the Satechi hub work with one monitor connected? Did it work with two monitors connected using lower refresh rate?
What is your Laptop? Does it support two displays from Thunderbolt 3/4 or USB4?
The Asus VG279QM1A is only DisplayPort 1.2 or HDMI 2.0 so two of them should be able to work from Thunderbolt 3/4 or USB4.

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