So far all my basses have been 24 fret. It’s always felt kind of cool to have two full octaves on each string.
Recently I bought a 21 fret bass. And I totally did not expect this, but I like it better.
This is one of those things around relative positioning of the fretboard and how the bass fits the body, I think, more than anything about the fretboard. Still, I was surprised that it just felt slightly better to me. There should be little difference in the actual boards so I assume it must be something else about the bass geometry.
No big capability loss either, three notes on the G string. Those were the worst three notes on the bass anyway