I tried fancy fuses, and thought I heard an improvement. When I put back glass Littlefuses, some time later, I heard no difference. The conclusions were obvious; I'm with Wolfie, Al and others.
Presumably, every person on this thread has experimented with fuses for themselves, and come to their own personal conclusions. Just like with wires.
Every pair of ears, room, system and component varies. Systems even change with the time of day and warmup time. Too many variables. We can share experiences and opinions and advice, but with audio, "explanations" are only occasionally meaningful or confirmable.
So, what is there to dispute?