@bibeku255
Hi and welcome to the forum.
You cant know this but we have about 6000 feature requests already and this one since 2018.
It is tagged as "Will not do".
@MylesRyden, the Vivaldi blocker works pretty fine, depending on the filterlists which you activate or add. You can test it with this page
My result, using the default Easy list and apart
@yngve I agree. This is a more robust way to ensure the privacy of a tab. Many web services also have further ways to ensure the privacy of something, too.
I believe that these combined would achieve a robust solution for what the suggestion wanted to solve. Thank you for the comprehensive reply.