To me it isn't logical to show the label "Hidden from students" to students enroled to the course, so in case one wants to hide the label from the Dashboard in Course overview add the below CSS code under your Theme > Advanced tab, Raw SCSS field:
/* Hide label "Hidden from students" in the dashboard Course overview*/
#page-my-index .block_myoverview .tag-info { display: none; }
NOTE: Works in Moove theme, Moodle version 3.8.2+.