What does "would" mean here?

Native speaker’s answer
Rebecca
"Would" can be used in a variety of ways, but in this instance, it is used to express an opinion. The exact meaning within this context is that Ron's father is likely to know about the particular curse because he works at the Ministry of Magic. Ex: You're having car trouble? My brother would know what to do, he's a car mechanic. Ex: My computer is broken, but my dad would know how to fix it since he knows a lot about computers.