Add Bookmark for all users

var bookmark = new GlideRecord('sys_ui_bookmark');

bookmark.newRecord();

bookmark.icon = 'list'; // Opt for an icon that resonates with you

bookmark.color = 'yellow'; // Choose your preferred color

bookmark.auto_add = true;

bookmark.user = u.getValue('sys_id');

bookmark.title = 'My Group Work';

bookmark.url = '/task_list.do?&sysparm_query=assignment_group=javascript:getMyGroups()^active=true';

bookmark.insert();

gs.log('Bookmark successfully created for: ' + u.getDisplayValue());