Oh, I see. It completely flew past me. Didn't know Apple didn't support MST in macOS, that's just... Stupid.
Anyway, is there a way through EDID injection and/or patching to make macOS think the two connected displays are a single MST display, which Apple supports?
I recently installed macOS Catalina 10.15.1 on my laptop as my main and only OS, following RehabMan's Clover ACPI Hotpatch guide.
At first, everything seemed to be working. After a little bit of tinkering (installing Sinetek's kext, that is) I was even able to make the PCI SD card reader...