It's the same at my company. Teams and Zoom both automatically schedule meetings in every attendees' own time zone. Maybe that person's company still does phone meetings or something.
We don't use any automatic scheduling with Zoom or Google Calendar. Management doesn't send invites to those meetings, they just publish the link on Slack and we have to figure out how to get it into our calendars.
Trust me, at least once I missed a meeting because I was late by an hour due to time zone confusion.