I have a Mid-2018 Mac Book Pro.
2nd Display Support Option it writes the following
*In addition to simultaneous support of the internal display, this model supports a single external display up to 5120x2880 at 60Hz at over a billion color, up to two displays up to 4096x2304 at 60Hz at millions of colors, or up to two displays up to 3840x2160 at 60Hz at over a billion colors via Thunderbolt 3 (USB-C).
I cannot infer however from the above, whether the particular MacBook can support:
3 external displays with resolution
2560 x 1440
Any interpretations on this?