Bitwarden is a great open source password manager. It's various browser extensions, desktop and mobile apps leads to a smooth experience for the user.
The only issue I have with using Bitwarden is the fact that there is no auto fill feature for logging into other desktop apps. If this was present, Bitwarden would be a 5/5 product for me.
I think it's a great product but I stopped using it in favor of the iCloud keychain since all my devices are currently Apple. If I also had a Windows machine or an Android phone, I'd still be using it.
Complex passwords, documents, notes, credit cards and papers: so many things, all important, only one place to keep them, but easy and very safe. You don't have to be a software engineer to use it