As I think your replies indicate, it's variable. I get pretty much only scam calls. But my SO gets lots of scam SMSs, even ones targeting
my work, such as claiming to be from "my boss".
I get plenty of spam SMS, but they're not technically scams. (…unless I suppose if you jokingly consider the GOP a scam…) I wouldn't mind seeing those get cracked down on. (I'm not registered with them, and they continue to spam me about political issues in jurisdictions for which I've not been on the voter roles for over a decade.)
Also, spam SMSs trying to get me to sell my parent's home. (I don't think these are scams, per se, but from what I've read their offers aren't going to be good. Nonetheless, I'm not looking to evict my mother … out of a house I don't own?, of course.)
Finally, my hometown has apparently sold their soul … and somehow my cell phone information? … to a random private company. Instead of publishing WEAs like a normal jurisdiction, I get SMSes that have little to no context, like "take shelter from the storm" while it's completely sunny and the forcast is nothing but sun, and the radar is clear. (It took a while to figure out that they were warnings about a city a few thousand miles away, since, again … 0 context.)