I find BG3's attributes to be at least a bit more balanced than 5e as written tends to be.
Strength is actually super useful for any melee fighter, even if you're running Dex. BG3, by its nature as a 3-D environment, has waaaay more verticality than most DnD campaigns just by virtue of not being played on a 2-D surface. That verticality has thus made strength way more valuable as a way to get to the high ground quicker or to jump down on an enemy to attack.
Intelligence has also come up a lot more frequently than in my experience. Largely because you can't... "Soft metagame", I'll say. Where your character just knows things the player does if it is applicable. Your character only knows things it is tagged to know based on race/class or what it succeeds at on Int checks.
Arcana comes up a LOT. To the point that even my Githyanki ranger has gotten a fair bit out or Arcana checks. Right at the start you need Arcana to know what the buttons on the ship do. I've also seen it rolled in the background during conversations a fair bit and can unlock new dialogue options. So if you're playing a Face character you'll want at least decent Intelligence along with Charisma so you can know what your character is talking about.
Oddly enough I've not seen many Investigation checks. Making those more prevalent would make Intelligence even more desirable as a stat. Though I imagine Investigation will be a lot more common once we get to Baldur's Gate and inevitably get a "solve a murder mystery" quest or have to deal with rogues and thieves more often.
