samsung – Can I use Odin 3.12.7 T Flash option to install u-boot onto my SD card without tripping knox?

I’m curious, if I can eventually dual boot on my Galaxy Tab Active 3, because some games are broken on the newest One UI and I want to take control over my OS.

However this question only focusses on the custom bootloader U-boot for the SD card.

Has anyone an idea if this will work, because it would be a huge step forward for the Samsung Android community?

Any answer is appreciated!