Personally, I don’t think the party needs to move around in formation at all.
Personally, I absolutely DO and the urge becomes even more apparent for anyone playing the game modded to support a party larger than four standard characters.
The default formation, a spread-out triangular one, is absolutely dreadful to maneuver around the scenario when navigating in real time.
Especially in tight spaces/inside buildings and around traps.
The only time it matters is the very start of combat
The times it matters THE MOST is when exploring OUTSIDE of combat.
EDIT - here's an example of what it looks like.
![[Linked Image from i.imgur.com]](https://i.imgur.com/FvTFWfg.jpg)
For every encounter that matters, you place your characters well spread out and control them individually anyway. It doesn't matter at all.
"Encounters" are not the core issue, here.
I don't get if some of you people are simply completely oblivious of standard quality of life features introduced in the genre two decades ago or so invested in defending the game no-matter-what that you would overlook ANY flaw.