They should at least give the "long range" spells a 90ft. range so there would at least be a long range / medium range dynamic. It adds tactical depth to be able to cast a Fire Bolt but not a Hold Person at 80ft.
I don't think elevation should just flat out increase range like it does in BG3 either. Gravity should mess up ranged weapons pretty effectively at long range and spells could easily dissipate. The *really* far arcing shots from high ground that have advantage and a 94% hit chance feel very wrong in BG3. Not only do those shots feel like they should never be anywhere near that accurate but also it should never be easier to hit a target 120ft. away than another 20ft. away, regardless of elevation.
Long range should always have an attack penalty and high ground shouldn't grant Advantage in the first place.
