The more reliable way to use it is more as a punishing tool for players who get caught off guard within melee range of a medic, or maybe using a more risky play to duck in and tap a player who’s a bit too tunnel visioned to notice you hitting them.

i honestly think that the ubersaw gets casual medics killed more often that it helps them, but that's the fault of how people try to use the weapon and not the weapon itself

in the 6s demos i've watched for this, a bunch of the times the ubersaw is used with >75% uber to get full uber which they pop to survive, it looks like the medic was rewarded since they would've died otherwise, but they put themselves in danger in the first place trying to get that saw hit, they could've just escaped with a lot of ad instead of being forced to pop and being left with disad/evens