Reddit Dogecoin Dev LolaDam have created the first pre-release for the SPV wallet. It is bundle as a .AppImage linux app. By default it will start on testnet.
You can test it and give your feedback here: ShibeTechnology/dogecoin-spv-guireleases/tag/v0.1.0
For context, this is a Simple Payment Verification wallet. This wallet use less space and bandwidth than a full node like Dogecoin core. It is complementary to it. It is more meant to run on your desktop. It doesn't need to be online 24/7. And more importantly doesn't require any kind of central server for data.
