Sure, it spews a moderate amount of ultraviolet our way, but most of this dangerous radiation is screened from Earth's surface by atmospheric ozone. Nonetheless, we know that most other stars are, indeed, unlike the Sun. Some are bigger and brighter, and a great deal more are runty and dim. The brighter stars die young, typically in only a few dozen million years, hardly sufficient to incubate complex life. However, if we wish to be conservative, we might opine that dim stars are poor bets for supporting sophisticated biology.
Large stars are non-starters, and small stars are problematic.
But sun-like stars are not rare. Approximately one star in ten is similar to Sol, and that means that tens of billions of them inhabit our galaxy. Indeed, even stars somewhat brighter than the Sun, which because of their heightened ultraviolet production might be thought dangerous, could be the loci of life. Jim Kasting has shown that the enhanced ultraviolet radiation from F-type stars would produce so much atmospheric ozone that planetary surfaces could be very well shielded. Rare Earth's authors suggest that the composition of our solar system, including the materials necessary for making rocky planets, might be unusual.