No! Unless you enabled the wrong repos. I think you have pulled a partial quote from its context, so here is my original comment:
After new Tumbleweed started, I returned to using higher priorities for packman repos (i.e. lower numbers) e.g. 85, with the two main Tumbleweed repos at default priority 99 (I don’t have Update repos enabled yet, since they are for a rare emergency).
Tumbleweed now has two main repos; Oss and Non-oss which are regularly updated with snapshots from the development process. That’s different from the standard openSUSE release which has additional Update repos.
With Tumbleweed, DO NOT enable the standard release’s main repos or Update repos.
However there does exist at least one (possibly two) empty Tumbleweed update repos for future unspecified emergencies, where an update cannot wait for a regular snapshot. It hasn’t happened so far and is unlikely but not impossible. BTW, I’m not enabling it before it’s needed, if ever. 'You will only find these things out if you read the Factory Mailing List Archive.
The higher priority on packman repo(s) or any other third party repo just tells zypp’s resolver to prefer packages from that source over the ones from Tumbleweed. The same use of priorities can be applied to the standard release, and should be described in the man pages for zypper.