I have the note air 2 plus, the battery is only bad if you have WiFi on, with WiFi off it can last weeks. It’s a really nice device otherwise.
Canonical was giving free CDs when I was a teen and it looked cool. Later versions of Unity DE were so good, I liked older Ubuntu so much. Now I run it on older devices to give them some life back
You should try it anyway, I have a rooted lg oled running the latest firmware. Updated a couple of weeks ago.