You can only develop the corresponding versions of the Convai Unity Plugin based on your preferred operating system.
If you ever get an error that looks like this, disable the Assemble Version Validation in
Assembly 'Assets/Convai/Plugins/Grpc.Core.Api/lib/net45/Grpc.Core.Api.dll' will not be loaded due to errors:
Grpc.Core.Api references strong named System.Memory Assembly references: 184.108.40.206 Found in project: 220.127.116.11.
Other platforms will be tested and updated shortly.