When people say a bad OS can fuck up /dev/urandom what do they mean by that?
I think i am being ultra paranoid here.
So if i want to generate a strong random seed it doesn't depend on say hardware?
I mean if i have old PC will it generate less random seed compared to new gen PC?
If i use electrum on linux vs windows which is more better to generate random seed?
/dev/urandom is seeded from many different entropy sources including your CPU's hardware source, which might be bugged. But fortunately, this is not a problem for Linux because both /dev/random and /dev/urandom are blended with many other sources of pure entropy.
I do not know what kind of RNG is used in Windows, as it is proprietary software. But you should not be at risk unless you are being targeted by a state agency.