Ordered a Chromebook by mistake

You covered almost everything I was going to say in your opening email. If you only need it for browsing, it’s fine. If you have a desktop computer, you can use remote desktop or similar to access it, which would probably work for a remote job as well

The other thing I would cover is that modern Chromebooks can run Android apps and apparently Linux apps, which means they can run Wine. Also, there are ways to install Windows on if you really need it.

But, given your use case, that previous paragraph is likely overkill. Install some extensions on Chrome (e.g. uBlock Origin for adblock) and maybe install an app (a Chromebook app or an Android app) for a site you use often. And, yes, install remote desktop or a screen sharing solution if you need to access another computer.