Working fine here on Mac Safari for some time also. Interested in this blocker K, could you please do a screen image for me of where to find it in settings?
Thanks
Al
Use Distraction Control in Safari to hide items on a webpage – Apple Support (UK)
If a webpage regularly shows one or more items that you find distracting, you can use the Distraction Control feature to hide those items until you choose to see them again.
support.apple.com