How can I use Ubuntu 22.04 on a Samsung Galaxy Book 2 ( NP750XED )?

I installed Ubuntu 22.04 on my Samsung Galaxy Book 2 (NP750XED) by following the official instructions and it works perfectly until I turn the computer off. After boot, when reaching the login prompt, the system abruptly goes to sleep. I can wake up the system again, but it will quickly go to sleep again, stuck in a perpetual loop.