I made an alt and played for 10h.

[VeyaAkemi]

Testing how far you can get in a set amount of time with an alt is going to give a mildly inaccurate result as you will have more knowledge of the game than a completely new player.

The third line in the OP shows exactly this, I actually agree that starting as Arcanist is objectively the best start you can have, as the versatility between SMN and SCH is unmatched, and you can either pick up WAR or wait until 60 and pick up GNB and have all 3 roles, all at very little cost, only locking your starting city to Limsa, this will guarantee a much smoother experience, allow you to adapt to ques as they come, so on... and also it's something a new player would have zero clue to do.

It's an element that maybe wouldn't have shown in those 10 hours experience, but it highlights how just understanding the game will bias your behavior and lead to harshly different results, and if someone went further, that is say, "all of ARR", it would become very visible.