I have to admit I'm unlikely to make another dual-wield character unless I find something like a weapon of warning or a defender, some sort of weapon I could set off-hand and never have to actually use to get a benefit from. One of the advantages of dual-wield in 5e is that there is no "off-hand" rule so you can just choose whatever mix of weapons you want for main attack.
An example that I admittedly haven't encountered yet.
If I were to encounter a creature that is immune to non-magical weapon damage... I could choose to make my main attack use the magical dagger in my left hand without needing to switch hands and just not use the non-magical battleaxe in my right hand.
This isn't possible in BG3. The game just automatically uses your right hand as the main attack. I could spend my one inventory manipulation to switch hands, but it's irritating.
