I’m currently out of the office, not quite as pictured unfortunately. I’ve had quite a bit recently – for better or worse. But that’s not why we’re here.
I do have a pet peeve though, and I’m sure we’ve all seen it before:

Then you take a look at their profile, and it’s just as confusing:

(these are from my profile by the way)
Am I actually out of the office but there’s a server on fire and the hamsters can’t reach the extinguishers? Or have I returned and forgot to turn my out of office off? Or is it just Teams taking its sweet time to update?
We just don’t know.
When setting up automatic replies, set a time range. This way, it’ll take care of itself:

You can set it up ahead of time for whenever you’ll wrap up, and crucially, set it to end the evening before you return. This will turn it off automatically and won’t be any confusion the following morning.
That way I know I won’t be in the ‘Available – Out of office’ limbo. I know, it’s the little things eh.