I'm not the one to really answer this as I'm never a big fan of arcane classes for some reason.. but:
Sorcerers can change damage type with metamagic. Maybe only one type of Sorcererm but I've sene them do it. Big ol's Acid-Fireballs and all.
That metamagic isn't in the PHB. It is an optional rule in Tasha's.
It's not in EA, and I doubt it will be added because Larian's surfaces make it more much more complicated to code. If you change an acid chromatic orb to thunder damage does it create an acid surface or a thunder surface or an acid surface that does thunder damage?
