Swapping a single roller on a residential door isn't beyond a patient homeowner, provided it's one of the rollers in the lower two or three positions, away from the spring system. Release the door from the opener, prop it, and the bottom rollers come out of the track without much drama once the retainer bracket is off.
Where it gets dangerous fast is the top rollers, the ones closest to the torsion spring and cable assembly on a door built in the 1997 era, which almost always means a torsion spring under real tension sitting right above where you'd be working. We don't recommend touching those yourself, and honestly, if you're not sure which rollers are safe to pull, it's not worth guessing. The other limitation worth knowing: if the track itself is worn or bent from years of a bad roller grinding against it, a new roller alone won't fix the noise. You'll be replacing track too, and at that point it's a job, not a ten-minute fix.