I have a Pixelbook and it used to be great, but now I get constant freezes and crashes with android apps, unresponsive windowing UI and launcher, etc. It's also constantly updating itself, which isn't inherently bad, but it's asking for restarts what feels like twice a week.
Linux containers is half-baked (takes >30 sec to launch), the stability of Android apps is questionable.
The linux containers are slow to start but that only applies to the first time you run a linux app after restarting the computer or logging out/in. Otherwise they work great.
Android apps are more of a mixed bag.
The bigger problem is that PWAs don't quite seem ready and Chrome apps are deprecated so there's no good way to make apps that specifically target chrome os right now.
- copy+paste not working, or only working on small strings
- font size issues and anti-aliasing issues
- delays on keystrokes
Any type of advanced networking in Linux was also a huge headache (e.g. a wireguard interface) and didn't interop with the browser. So as needed, I was at one point running both the Chrome on ChromeOS and another Chrome in Linux.
The biggest frustration is that all I use it as a glorifed PDF reader for sheet music- I use an Android PDF reader and the Scribd app and it's hit or miss it those work after waking sleep.