They don’t work until UPS scans them for pickup. Might not update until Monday, I don’t know if they’d do a Saturday pickup. Pretty sure they won’t do Sunday but one can hope.

it means a shipping label has been created but the package hasn’t left yet to be given a index for the tracking to read

UPS doesn’t work in the weekends, so this is only a label that has been created. I don’t know how it comes that some people in other countries it already received but I think that they use a different courier in some countries that also process packages in the weekends with priority shipping maybe.