As we can see from the number of blocking issues, despite having more than a month extra to bake, the Windows 10 October 2018 update is not quite polished yet.
Microsoft is, however, trying to get there, and have released a new Cumulative Update to Windows 10 Insiders in the Release Preview ring to test fixes before public release.
The update, KB4469342, takes the OS to version 17763.168. No changelog is available yet, but it presumably addresses some of the known issues already discovered.
Windows 10 Insiders on the Release Preview ring can get the update by Checking for Updates in Settings. The update does not appear to be available on the other rings who are likely already on 19H1.