hi @Daniel PN
You can try my update OC 0.6.0.
Enter your own Serial Number and your own device properties, I'm only put graphics and audio on properties. SD Card reader is disable in BIOS due I don't have SD Card for testing it.
Wifi card swap form DW1708 to BCM943224PCIEBT2 and Mac OS Using Catalina 10.15.5 (Build 19F101), and touchpad is ALPS V8.
My system is touchscreen and working properly with this EFI. I2C kext still using release 2.3 due last time when update to 2.4, the touchscreen is not working.
FYI, since I'm use Opencore (0.5.6 - 0.6.0) on my e7270 must add boot option manualy in BIOS.
EFI 7270 OC 0.6.0.zip
SSDT on this EFI is mixed to 1 file.
If you want separated SSDT herewith the file
ACPI separated.zip