Ah, so your circle of friends does not include people with messed up audio. Teamspeak happily passes on whatever it got as input. Discord does quite a bit of filtering, able to salvage legibility of some of my friends.
It isn't a matter of server-side vs client-side (I have no clue what Discord does, but it does eat quite a bit of compute client-side), but of what we get out of the box.
Ah, so your circle of friends does not include people with messed up audio. Teamspeak happily passes on whatever it got as input. Discord does quite a bit of filtering, able to salvage legibility of some of my friends.