First gen Lenovo Chromebook Duet still worth to buy?

Hello all!

I'm a complete noob in this, a few months ago I did a big jump into the unknown and bought my first Android phone since years. Since my phone don't have a display out capability I need something to work when it is off season like this I will be able to watch YouTube and Netflix and maybe light web browsing. I have never used any Chromebooks, but I'm interested in it. Found an OG Lenovo Duet on Facebook Marketplace for rather cheap I'm very tempted, but I have no idea what kind of performance I could expect from it. As I said, I just want to use stream videos on it and light surfing on the net, no gaming or anything like that. If I like the OS itself I might consider ditching my M1 MacBook Air for a Chromebook, or whatever Google calls the new OS what they developing. Thank you!