I've encountered the exact same issue. What helped me somewhat, at least with the video playback, is opening videos in embed player.
I coded an extension that adds a context menu for opening videos in embed mode. https://addons.mozilla.org/pl/firefox/addon/youtube-open-as-...
I have nothing against AI myself, but it significantly changed how hackathons work.
One prominent example I won't name, I had attended over a couple years. Coincidentally,the timing overlapped with pre-LLM boom and post-LLM boom. My first edition had zero usage of LLMs, the last had practically 100%, the rules were accommodated. The teams were no longer required to present a working example, a literal figma concept and a cool slideshow were more than enough.