Yes, you can obtain and use Digital Address (JPN ver only) on the web browser in addition to the Japan Post Official App (JPN ver only).
On the Digital Address introduction site, tap [Obtain/check your Digital Address from here]. Then, operate following the guidance on the screen to obtain your Digital Address.
* To obtain Digital Address, you must register to the Yu ID, and log in to Digital Address for Web (JPN ver only) with your Yu ID
<Digital Address introduction site>
https://lp.da.pf.japanpost.jp