I have a couple of them that I bought shortly after the LTT video on the topic with the intention of rooting. After figuring out that I'd unfortunately got the newer hardware revision that can't be rooted, I had them just sitting in a box.
If "debloating" them without rooting and installing Lineage or whatever is "good enough," maybe I should take another look. Do you know of a good guide to follow? Is there anything special that needs to be done, such as preventing it from updating or connecting to the Internet before the factory malware is removed?