I’ve used both and currently use only Keychain. It works well, but it is so much more limiting than 1Password. Try something as simple as adding a second domain name that uses the same username and password, it’s almost impossible with keychain.Yeah, nah. iCloud Keychain works spectacularly well thank you, the endless subscription plague is the worst thing ever.
Of course, it’s free and great for people only in the apple ecosystem, but it’s not exactly the same experience as 1Password, to be fair