I apologise in advance if this is not the right place to make this post, but I have identified a tracker that Better does not seem to block.
The company is called Relay42 and uses r42tag.com and svtrd.com to serve tracking scripts and pixels. It seems to be a Dutch company, and I’ve encountered it on several Dutch sites now (e.g. klm.com, ns.nl).
You might want to consider this blocker, since Relay42’s website reveals their “services” are offered to quite a lot of big Dutch companies and their websites.