Zoom app position on Windows 10 taskbar

Hi. In a recent Zoom webinar I moved the Zoom app tab to the left end of my Windows 10 taskbar so it is nearest to the monitor I was displaying it on, whilst I multi-task. Every time I clicked to focus on the webinar, the Zoom tab moved back to the right end of my taskbar.

No other app I use moves itself along the taskbar.

How do I stop the Zoom app from repositioning its tab on the Windows 10 taskbar?

Thanks.