Specifically for GitLens, I find the settings ui practically unusable -- mainly because GitLens has LOTS of settings, but also because there is no extension controlled order (alphabetic imo doesn't work well), no extension controlled grouping (other than alphabetic proximity), and more. And since the new settings ui became the default, I've seen an uptick in users running into many issues trying to find settings.
To combat this (and really this was long before there was even a settings ui), GitLens provides its own built-in settings editor which is highly tailored and interactive to help guide users. But users have a very hard time discovering it. And again since the settings ui became the default users think that the vscode settings ui is the same as GitLens' settings editor, even when I explicitly provide the command to be run from the palette.
Given the above, I would really love a way from the vscode settings ui, extension page, etc, to at least advertise (or better yet replace/block the built-in ui) and direct people to GitLens' settings editor. Maybe something like a mini-banner with a link or something to guide a user to a much better experience.
/cc @roblourens
Sorry that you are having these issues. Gitlens is probably a special case here, I don't really want to introduce a general purpose way to link to a different settings UI for extensions or encourage them to go off and do their own thing, because the vscode settings GUI should be the best thing for 99% of cases.
And we will probably never do everything that gitlens' settings editor does, but help me make a list of the things that are missing from vscode's GUI that are necessary to have a better experience for extension settings.
@roblourens Thanks. Here are some of my thoughts:



a simple vs advanced toggle to the whole settings ui to reduce the overload of settings unless you want to see everything
Personally, I'd prefer just having the setting not show up in the UI, but still get intellisense support when editing the JSON file in this case.
@roblourens What do you think about allowing an extension to opt-out of having their settings show up in the Settings UI and instead show a message with a link (similar to Edit in settings.json), but would be a command provided by the extension. Or at the very least, just allow an extension to have a message + link command to direct elsewhere?
That way I don't have to resort to something so hacky like:

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@roblourens Thanks. Here are some of my thoughts: