These have nothing to do with either platform.

You input a trigger, they sell you what they want to sell you.

Try making liberal use of the 'Not Interested' option.

Hover your cursor over the title of the vid, just below the picture. There will appear three little black dots at the right hand side. Click the dots and you get a few hidden options. Eventually (it takes a long time...) the site will stop dishing up stuff you don't want to watch, if you're patient enough.

... and display them in a protected window without pulling up a lot of useless "suggestions" based on your previous youtube visits.

https://duckduckgo.com/

Don't read this as an endorsement. Nothing on the internet is truly private and all "free" services got to pay the bills somehow.