Skip your mandatory -and ofc boring- pdf-based time-sensitive slides in the background.

skip.js

let isInProgress = true;
const PAGE_DURATION = 90000; // as milliseconds
const BUTTON_TITLE = "Next Page";
const getElement = selector => document.querySelector(selector);

setInterval(() => {
    if (isInProgress && getElement(`[title="${BUTTON_TITLE}"]`)) {
        isInProgress = false;
        setTimeout(() => {
            getElement(`[title="${BUTTON_TITLE}"]`).click();
            isInProgress = true;
        }, PAGE_DURATION);
    }
}, 100);