To answer your question, Madscientist, the PnP ruling could be considered murky, just by RAW, but only by the most devil's-advocate determined people; it says that you must make a save when you take damage, for each source of damage. The exmaples it gives are an arrow, and a dragon's breath (as being two separate sources of damage). A single shot that has multiple components (such as a rogue attack with a flaming arrow from stealth), is still only one source. Similarly, a spell like Magic Missile, even if all the bolts strike the same caster, still only generates one concentration save for that caster; that one in particular was ruled on by some of the designers in Sage Advice.
You are right; Concentration is taxed a lot more in BG3's rendition of the rules. A lot more than it should be.
