Alternatives
Install f-droid and search for "password manager". The top two entries (according to most recently updated) are NC Password which interfaces with Nextcloud Passwords "Passwords is the most advanced password manager for Nextcloud and allows you to manage and store your passwords safely in your own cloud."
The other is KeePassDX which works with KeePass-format password entries, so you could use it with KeePass on your desktop. "KeePass is a free open source password manager, which helps you to manage your passwords in a secure way."