Thanks for considering this issue more deeply. The behaviour with autofill has been improving slightly with each new version of orion+ (things are being polished) but I think that the problem, unfortunately is not straightforward.
First, I'm using:
Version 0.99.126.2-rc (WebKit 618.1.2)
Build date Nov 10 2023
MacBook Pro (macOS Sonoma 14.1.1 build 23B81)
Only bitwarden extension
I'm experiencing a better behaviour if the auto-fill option is configured with the setting "Regular Expression". This improves the auto-fill results, but in some ocassions, auto-fill does not work properly.
I having trying to find a regular faulty behaviour but it is not easy. Things that I have figured out:
Usually, first time that I visit a webpage from a browser clean install or in an new machine, it is required to accept or reject cookies. If this happens, bitwarden in orion does not work properly. It is required a reload of the page after accepting cookies to make auto-fill work as expectected. I have tested it with just a Facebook account.
Moreover, webpages that have a login screen that appears over the main webpage have high probability to not be auto-filled. Indeed, it is quite easy to test, it happens with https://orionfeedback.org/ or https://foro.adslzone.net
My feeling about the problem is some faulty trigger to reload the webpage or reload some certain information that bitwarden requires after some interaction with a webpage to make auto-fill function work properly.
@Vlad I'm not very sure what you mean test credentials. Do you want that we create an account in certain websites where problems exists to later make orion team to perform tests? In such case, via private message?