Short tl;dr (not legally binding, non-formal writing)
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Showreelz.com was created to showcase inspiring and notable design videos. Its focus is to help the community to create even more great work. All videos showcased on the website belong to the original owners and they hold full copyright for them. Any of the videos can be taken down upon request.
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The website relies on “user-generated content” displayed using video embeds. Embeds are used on purpose, so the owners get views on their “original” videos. In other words, the website is a gallery with 3rd party content.
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Showreelz.com itself does not track, store, or use cookies. However, we do include a cookies info bar because of the 3rd party cookie tracking. This is related to the YouTube and Vimeo embeds, which, in fact, use cookies. Showreelz.com uses Pirsch, cookie-free and privacy-friendly web analytics.

And here is a more official policy

Last updated: April 13, 2022
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This is the Cookie Policy for Showreelz.com, accessible from Showreelz.com.
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What Are Cookies
As is common practice with almost all professional websites this site uses cookies, which are tiny files that are downloaded to your computer, to improve your experience. This page describes what information they gather, how we use it and why we sometimes need to store these cookies. We will also share how you can prevent these cookies from being stored however this may downgrade or 'break' certain elements of the sites functionality.
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How We Use Cookie
We use cookies for a variety of reasons detailed below. Unfortunately in most cases there are no industry standard options for disabling cookies without completely disabling the functionality and features they add to this site. It is recommended that you leave on all cookies if you are not sure whether you need them or not in case they are used to provide a service that you use.
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Disabling Cookies
You can prevent the setting of cookies by adjusting the settings on your browser (see your browser Help for how to do this). Be aware that disabling cookies will affect the functionality of this and many other websites that you visit. Disabling cookies will usually result in also disabling certain functionality and features of the this site. Therefore it is recommended that you do not disable cookies. This Cookies Policy was created with the help of the Cookies Policy Generator from CookiePolicyGenerator.com.
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The Cookies We Set
— Site preferences cookies: In order to provide you with a great experience on this site we provide the functionality to set your preferences for how this site runs when you use it. In order to remember your preferences we need to set cookies so that this information can be called whenever you interact with a page is affected by your preferences.
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Third Party Cookies
In some special cases we also use cookies provided by trusted third parties. The following section details which third party cookies you might encounter through this site.
— We also use social media buttons and/or plugins on this site that allow you to connect with your social network in various ways. For these to work the following social media sites including; YOUTUBE AND VIMEO, will set cookies through our site which may be used to enhance your profile on their site or contribute to the data they hold for various purposes outlined in their respective privacy policies.
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More Information
Hopefully that has clarified things for you and as was previously mentioned if there is something that you aren't sure whether you need or not it's usually safer to leave cookies enabled in case it does interact with one of the features you use on our site.For more general information on cookies, please read "Cookies" article from the Privacy Policy Generator.
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However if you are still looking for more information then you can contact us through one of our preferred contact methods:
— Email: mail@showreelz.com