How to remove the \"Zoom In\" effect from all images across the website?

Hi,

If you are using some flex blocks, then the zoom can be disabled in the grid settings – https://www.screencast.com/t/XSjCBVnmA
So if you don’t want this effect, disable it.

A code solution as you mention would work just as well. Either use the default big grid with additional CSS
.td-module-thumb .entry-thumb {
transform: none!important;
}
or the flex grid with the hover setting disabled.

Thanks