Morty-C-137 some are better than others. I haven’t tried the Logic one so I can’t comment on it, but RipX DAW is quite incredible for getting clean vocals that are initially bathed in reverb and delay. Obviously it takes a while to go through the file and remove that stuff, but I’ve been quite impressed with the results. I’ve always wanted to do a reworking of Bassomatic’s (AKA WIlliam Orbit) ‘Fascinating Rhythm’ and it gave me a lot to work with - including a very clean vocal.
Where it struggles a bit more is things like plucky sounds or synth parts.