I have a canister filter, but don't use it much. Doesn't seem to change the flavor. If absolute clarity is high on your list, then it is probably worth having one.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk