Additional features, settings, or issues not covered by specific Microsoft Teams categories
I have the same issue. I am certain this can be resolved if Microsoft dedicates some resources to it. My professional organization uses Slack. The app handles "status" beautifully. There are no automatic or default changes. It keeps your the message you select until you personally change it. It also enables you to easily customize your status, and set dates and times for a particular status. For example, you can say "On Vacation" and enable that message from 8 a.m. on Monday, month/day to 10 a.m. on Thursday, month/day, etc.