Does anyone here know anything about USB audio interfaces?

I want to use a cheep contact mic that's hooked up to my PC,
But all I know about the process is that the quality is below trash if I use it with a 6.5mm to 3.5mm jack converter,
And that an USB audio interface is the way to go?
And something something pre-amp and hi-z?

Yeah, I'm n00b n00b at did 😬

I just want something cheep to tinker with...
In case I decide that this isn't for me, they I ain't lost much