Nobody reads them, is it because they aren't useful? Maintaining wikis is a culture thing. If most of your employees don't use the wiki it's basically useless since it'll be falling out of date.
No, they aren't. IME meeting notes are useful only for people who missed the meeting and wanted to be there.
That isn't to say that there aren't other documentation artefacts that should be created as a result of the meeting (JIRA tickets, a wiki page explaining a particular feature), but they shouldn't ever take the form of "2021 June 23 meeting with marketing".
