Yes. I plug one monitor directly with HDMI, the second one with an HDMI/USB-C adapter and then my laptop as a third monitor. That said, I'm probably displacing these with a single ultrawide screen. Not quite decided yet, but I desire more screen space and adding a 3rd external screen is a bit more trouble (I'd need a new rack and a docking station) than running 2.
so instead of an external graphic card, you use an HDMI/USB-C adapter. yeah thought you may have found a way to eliminate that extra piece to keep track of. cheers I have two external monitors and no external graphic card. ". . . plug one monitor directly with HDMI, the second one with an * HDMI/USB-C adapter* and then my laptop as a third monitor.
USB monitor is as easy as it gets https://www.bhphotovideo.com/c/product/1310064-REG/asus_mb16ac_15_6_full_hd_1920x1080.html https://www.bhphotovideo.com/c/prod...mb169b_15_6_full_hd_portble.html?sts=pi&pim=Y