It's referenced in the OP:

    Chromium-based browsers are being “infested” by Instart Logic tech
    which works around blockers and worst, around browser privacy
    settings (they may start “infecting” Firefox eventually, but that
    is not happening now).

And there is a link to further elaboration: https://github.com/gorhill/uBO-Extra/wiki/Sites-on-which-uBO...