trying every class. 12 class, it's only 5 min for each (12*5=60 min), and you also have to check every races, some sub classes and choose spells, stats, etc.
You know you can respec right? 100g and you can redo everything except your race, name, and background. Ability points, skills, classes, etc is all able to be changed and you can get to the option being unlocked relatively easy (doable in early to mid level 2).
I usually take a long time in character creation, but it doesn't get multiple hours long even if I'm particularly bored with The Sims and trying to kill time.
Baldur's Gate took me just over two entire irl hours because there were very few bad options for me to narrow it down with. I've never seen a game with a bunch of tattoos that actually had good tattoos, and I was trapped between three eye colors that all worked but all had a subtly different feel.
I agree the cosmetics aren't that robust, but when you consider most players probably have never played a TTRPG, particularly D&D 5E, picking all the stats plus race can take some time.