I bet that you can read, it’s just that you didn’t bother to read carefully enough, so let me repeat it for you.
That alleged “literally any problem” in this case is no longer being able to have normal phone conversations in my own home due to insufficient mobile network signal level, both 4G and 2G, with no perspective for it to change anytime soon, as already described twice.
4G inside my home is actually unusable because it instantly drops to 2G. And 2G signal, which only 1-2 years ago used to be nearly 100% just like the now shut down 3G, now is barely 5%, so, clearly, they must have shut down some of 2G base stations along with 3G, leaving suburban residential areas like mine barely covered - usable outside but not indoors.
While maybe for you inability to have normal voice calls from your own home is “literally any problem”, in reality it is THE problem, because it is THE functionality the mobile phone is for, and THE functionality that in the current world one can’t normally function without.
And while with an iPhone or any Android phone such situation is easily solvable just by enabling VoWiFi and patching faulty mobile network coverage with strong signal of own home WiFi network (which is what all my neighbors and even my wife do), on SFOS there is no solution for this.
Or do you know any? I mean some reasonable ones, not moving house or no longer making phone calls while at home. Come on, be productive and tell us how you would resolve this “literally any problem” other than switching to a VoWiFi capable device/OS.