I thought most household bulbs chopped it down to something like 30-40V.

Some lower spec lighting devices might take 120V and run LEDs in both series and parallel, but as LEDs fail, the rest get more current, leading to more failure… positive feedback loops for the win!

the parallel chains of serial LEDs are balanced during production so they all consume the same current and if any LED in a serial chain fails, they all stop working, simply eliminating that chain from the circuit. Of course in reality it's not that simple.

It’s not really very good to use them like that though - without a huge cap you’ll get pretty prominent flicker - I expect it’s probably just cheaper to stick in a cheap SMPS at that point if that’s something you care about.