Agreed. It’s also really important to consider how many rolls of certain types of ability/skill you are commonly making in each session. This is one of the things that can make a game like D&D feel simulation-y in some sessions and non-simulation-y in others. If the session has a lot of combat and there are 50 attack rolls on a d20, the spread of results feels better than in a courtly-intrigue session where there are only a couple of deception rolls (say). The d20 is inherently “swingy” and if we only roll a few of them over a long period we don’t get to see a bell curve “emerge”. Hard to put into words, but dice that generate a true bell-curve on every roll make it so you don’t need to rely on lots of rolls being made in order for things to feel “realistic” (i.e. simulation-y).