I just installed Anchor for Linux and my info was restored correctly. I started Brave Browser and tried to connect to wax.blox.io but it doesn’t respond. I tried opening Anchor first but that had the same result. Everything worked fine before I reinstalled Linux.
Are you using the AppImage to install with? If so, there I think are issues with how they are “installed” (or not installed really) and not registering how to connect your browser to the app.
The deb installer works better at setting this up if I remember correctly, or you can modify the “desktop” file for Anchor yourself and it should then work. There’s more details about the required modification here: