WIP success got Catalina to finally boot on my XPS 15 7590

So Ive managed to boot into catalina on my XPS 15 7590, after using SSDT-DNVME.aml to disable the nvme ssd and editing the iGPU values, also fixing the keyboard and trackpad, however one question that does linger is that will catalina install on my WD passport portable ssd, and if it does it wont change anything to the boot config on the bios as I plan to use MacOS like any other live linux, and just hit f12 and boot it everytime? https://imgur.com/gallery/empAD2f