its well known that intellisense has always been broken with things like ListList.Contains or pressing . after typing certain prefixes does not correctly show options, or typing null enter put...
One of the things that I like about using the Power BI desktop is that you are able to use the syntax highlighting & snippets / IntelliSense built into the advanced editor. Recently, after working with data flows it has become difficult because the syntax highlighting and IntelliSense doesn't exist on the online version. If this was added like as is on desktop, it would probably save a lot of time for some people from copying from a text editor over to the online app. Even if it was not IntelliSense and just snippets instead, it would make writing queries much easier still.
