This is not correct. I just checked for updates, and there were none available. The option to "never combine" windows on the taskbar is still missing. Hopefully this helpful option gets restored soon.
What OS build and version are you on? Are you on the insider channel? It's still slightly buggy, for example instead of showing "Microsoft Edge" when I am on this discussion, it says "Can't un-combine taskb" and then cuts off. This is consistent across several apps. I'm on Enterprise Build 22631.2199. Here's the article with the changlog for my build Announcing Windows 11 Insider Preview Build 22621.2199 and 22631.2199 (Beta Channel) | Windows Insider Blog. However, if you aren't on the insider build you likely won't see the feature yet.