I was able to open Microsoft Edge, go to the page settings button in the top right hand corner, and uncheck (turn off) all settings on the settings page. I then restarted the laptop and it has not come back since. Not on the taskbar and not in Microsoft Edge. I don't know what the correlation is between the two but it seems like Edge is definitely forcing the reset of the taskbar setting.
Thank you, this helped to solve it for me.