This is explained on this support answer
It’s a thing on Revanced YT even if spoofing an old version.
Apparently applies to the web version?
This is explained on this support answer
It’s a thing on Revanced YT even if spoofing an old version.
Apparently applies to the web version?
There’s not really much evidence that targeted ads work any better than random ads. Plus they already have a point of data to serve ads: what video the user is watching.