If it's stored locally, has a strong password (it should be a very strong passphrase. I don't know how long mine is, but more than 40 characters), and is encrypted (which any good password manager should be), then it should be fine. I don't see any issue, at least not a reasonable alternative. Now using a password manager service that you're trusting with your data probably isn't a great idea.
I use KeepassXC. It's free and open source. The android app I use is KeepassDX, though there are others, and I use Synchthing to synchronize changes between devices.
If it's stored locally, has a strong password (it should be a very strong passphrase. I don't know how long mine is, but more than 40 characters), and is encrypted (which any good password manager should be), then it should be fine. I don't see any issue, at least not a reasonable alternative. Now using a password manager service that you're trusting with your data probably isn't a great idea.
I use KeepassXC. It's free and open source. The android app I use is KeepassDX, though there are others, and I use Synchthing to synchronize changes between devices.