For those who are unaware, in macOS 11 (aka "Big Sur"), Apple changed all of the standard system sounds. If you compare the system sounds preferences of it (or newer) releases with prior releases, you'll see that the standard set changed:
| Old (pre- Big Sur) macOS system sounds | New (Big Sur and later) macOS system sounds |
|---|---|
| Basso | Mezzo |
| Blow | Breeze |
| Bottle | Pebble |
| Frog | Jump |
| Funk | Funky |
| Glass | Crystal |
| Hero | Heroine |
| Morse | Pong |
| Ping | Sonar |
| Pop | Bubble |
| Purr | Pluck |
| Sosumi | Sonumi |
| Submarine | Sumberge |
| Tink | Boop |