There are many tools to use to remove image background. The list below features some of the best among the pack. I selected the ones that are simple and easy to use. You do not need any graphic design or image editing knowledge to use them. For removing video backgrounds, check out Unscreen. To blur backgrounds, check out these blur background apps.
https://www.educatorstechnology.com/2021/07/4-tools-to-help-teachers-remove.html