Totally agree, the options that iOS gives you to attempt to control spam are basically either pathetic or non-existent. I get tons of spam calls from one country, presumably doing a "missed call" scam trying to get me to call back and pay crazy rates. I don't see any reason why implementing a "block everything from country code x" feature would not be completely trivial, and it would instantly solve the problem. Yet my stupid smartphone can't do it.
Did you start to notice things getting worse around the new year when they added Brave to their search results? That was the turning point for me, I was a huge advocate but then quality went downhill and then a few weeks later they proudly announced that they had spent a third of their funding on...t-shirts. Between that and this huge push towards being just like Google and Bing with LLM hallucinated nonsense, I'm not sure what their aim is anymore.