Worth mentioning leaving immediately without reading won't prevent them tracking you (they've presumably already done that before you started reading the banner).

Which is why such banners are generally* not considered compliant with most privacy regulations & are largely put in place out of ignorance/general misinformation around what regulations require.

* Depending on what the cookies are doing it's entirely possible this website might not need to get any consent or even inform users at all - the banner does nothing for them either way.