I’ve use Keepass for many years. I open keepass and when I come to work and it remains all day long. I use it for local program logins which bitwarden does not do, in addition to websites. A clear plus. However, setting up syncing from Windows is somewhat complex. It requires setting triggers to sync on opening and to sync on saving. Once setup, it works fine and the Keepass2Android app works great. So, I tend to recommend cross platform and syncing users to use Bitwarden. But, if you’ve got the syncing working fine that problem is already solved. For example if you had a Mac or iPad instead of android, I’d recommend Bitwarden.
Since you’ve done the sync work and are just using Windows and Android, I’d recommend you stay with Keepass.
The only other issue, also not a problem for you, is that with Keepass syncing, you are forced to use Something else to store the passwords safe. In your case, OneDrive, in mine DropBox.