The same error is present for any field using choices such as tags

@ReLater you dont have to edit field; You can just select example value from dropdown.

@wojtekxtx no you cannot - did you even try

did you even try

@brianteeman Not yet. But this does not change the fact that, if what you say is true, there could/should be better wording used in guide.

you dont have to edit field; You can just select example value from dropdown.

????? See image. The dropdown is blocked. Then I could provide video 5000 on YT with some blah-blah-blah instead of using the guided tour where users shall actively add/change/test settings in single steps.

But this does not change the fact that, if what you say is true, there could/should be better wording used in guide.

??????????????????????????????????????????? (plus some more). The wording is correct, but the popup is not associated with the field, as is the case with other fields, and the field cannot be edited, as is the case with others in the tour.

The only way to access a fancy select in Joomla is to use the :has selector, which is available on all browser, except for Firefox, behind a flag.
With the way Joomla builds these fancy select boxes, I don't see another way to get to it if there is more than one fancy box on the page, which is often the case.
Firefox is planning on supporting :has in the first half of this year (https://bugzilla.mozilla.org/show_bug.cgi?id=418039).
What I would suggest, since there is no real certainty with Firefox, is to use the :nth-child selector for now, which will ensure proper support.

Confirm issue as shown on above screenshot. In the console I saw the following, but I don't know if it's relevant:

Please test PR #40077. Thanks.

@Quy I didn't see the reference to the PR when I called up the issue. You can only see it on Github.