I have a Chromebook that uses MediaTek mt8183.
This device has no UEFI or Legacy Boot. only altfw.
Chrome OS is so useless. The specs are what I was needing, but it's almost impossible to do anything that I need to do on it. I absolutely despise it and would exchange it, but not only do I live in a small area, it's 2/3 years old. If anybody, anybody at all could help me out with this I would be greatly thankful to you. Chrome OS is basically useless on an ARM64 CPU.
How to install Ubuntu (preferably Ubuntu MATE) on it?