If you have YouTube videos embedded on your site is it even possible to switch to anonymous tracking?
I’ll link my response from the previous thread since it applies here as well: Anonymous tracking vs. Google Ads conversions - #2 by sararekowska 
Specifically for videos, you might want to implement this solution for non-consenting visitors: How can I block embedded videos, maps and other iframes on my site for visitors who didn't give consent? | Piwik PRO help center .