tomscharbach So you are right, Lockwise is seamlessly integrated with Firefox, and the expectation as of now is that the user uses Firefox to store logins. On desktop Firefox, you can create new logins as well as edit existing ones. With iOS Lockwise, you can't create new logins or edit existing ones: you can just delete entries. Additionally, there was talk of Lockwise coming as an extension to other browsers, but the future repo for that remains unmaintained.
On my iPhone XR, it's still a bit slow. The time it takes from clicking a login entry to filling the forms can take a few seconds longer than, say, Bitwarden. On my 6th generation iPad, sometimes Lockwise freezes on the splash screen, and I have to restart my browser. So it can get buggy, but not enough for me to use another password manager at this moment. I read the article you linked, and while there's been progress on some of the concerns, others remain valid today such as the use of secure password generation to replace existing passwords and buggy iOS experience. I can't speak to Android since I don't have one, but it can suck that you wouldn't be able to use Lockwise to fill in passwords in apps like Chrome.
Still, I use Lockwise because I support Mozilla and their mission. I think it has a bright future. It supports FaceID and auto lock, you can use Firefox Accounts to log out of Lockwise on certain devices, and I like that on desktop Firefox, I don't have to press Ctrl+Shift+L when I want to log in; entries are prefilled. And it's one fewer addon to install. I can import into and export out of Lockwise using a CSV file. Firefox Accounts has 2fa. Obviously, people who want a lot more from a password manager would understandably prefer something like Bitwarden or 1Password.
By the way, you can track upcoming features for iOS Lockwise here. Features waiting to be released include editing logins! I wish there was the same love for Android, though.