Base-32 just encodes one more bit per symbol (5 instead of the 4 per symbol that hex does), so the improvement is rather minor.
Re:Updating the Git protocol for SHA-256
by yencabulator on Sunday June 21, 2020 @09:06PM
(#23596607)
52 characters vs 64 characters for a 32-byte public key is a decent improvement if you ask me. Or, more to the point, aiming for anything denser makes the alphabet less friendly.
My personal favorite is z-base-32. It has none of those issues, and is much more compact than hex. It's the perfect in-between.
http://philzimmermann.com/docs/human-oriented-base-32-encodi...