I can assure you that Dogecoin Core is the official desktop wallet of the Dogecoin foundation. This wallet provides the basic features of a cryptocurrency wallet, such as send/receive and transaction history, along with the friendly doge logo.
The initial synchronization with the blockchain is slow compared to the lightweight versions, and you will need a lot of free space on your PC to install the Program.
It is a fairly basic wallet that can be run as a full node to support the entire DOGE network. The setup is not really complicated. They also offer a mobile version.
In my opinion, Dogecoin Core is easy to use and has classic wallet features like making transactions, checking balances and viewing account history.
Dogecoin Core is the most reliable option to protect your Dogecoin, with this program you can store coins on your computer as a file. But you have to be careful, if you reinstall the operating system and you have not created a backup, you will lose all the coins.
In addition, the program automatically synchronizes with the Blockchain network after the installation is completed. This one-time operation can take a long time and in the end the synchronized program will take up a lot of memory space on the hard disk.