When attempting to use Cesium for Unity and the quickstart project on an Ubuntu 22 installation, I receive compile errors which all appear related to Reinterop
Library/PackageCache/com.cesium.unity@0.1.1/Runtime/Cesium3DTileset.cs(1,7): error CS0246: The type or namespace name ‘Reinterop’ could not be found (are you missing a using directive or an assembly reference?)
An earlier thread reported this issue but I saw no obvious resolution on that thread.
Using the same quickstart workflow works on the latest Unit version on a MacBook Pro running Ventura.
This thread suggests no Ubuntu support Windows Build Errors
Are you aware of anyone running your code on Ubuntu 22, or are build from source instructions available ?