Additional features, settings, or issues not covered by specific Microsoft Teams categories
I have posted this same problem before. There is nothing anyone can do to fix it except for MS.
Everyone here is simply showing the gap between turning off your out of office in Outlook (any version) and the lag that exist between Outlook and Teams. MS would have to set up a sync exchange server with a better limit to comb changes and release them to Teams.
We can all bang our head against the wall, this is MS not you. It will update when it updates, 1 hour to a few days later.