>>maxloh+(OP)
I assume you are referring to the UR-browser. Despite being closed source, it seems to have better privacy policy compared to Chromium. By using chromium or many of its derivatives, you are automatically lending credibility and subjecting yourself to anti-user features like these. Chromium is one of those software that I consider as open source, but not free/libre. It absolutely doesn't respect users' interests. The usual argument of "but it's open source, modify it" isn't practical either, because the code base is too massive and complicated.
Despite all that, I would recommend only FOSS browsers with good privacy policy - because they exist.