I have Orion Keychain disabled, and even autofill password disabled in Mac password settings. I only use 1Password.
When logging into most websites, kagifeedback.org for example, I still see the keychain icon in the login field. This blocks 1Password from showing the autofill prompt
100% of the time, I just have to refresh the page, and the 1Password prompt appears. But it is an annoyance as most websites do not work with 1Password autofill prompt on the first try.
Safari for example, doesn't show the keychain icon at all with keychain password disabled, and I have a smooth experience using 1Password with Safari.
0.99.126.4.1-beta (WebKit 618.1.2)
Sonoma (14)
17