You won't get NWN level character creation - this is 5e, not 3.5e which I am told NWN is done in. They streamlined everything for 5e - but I seem to be alone here in disliking that.
There is a lot of material, it's just not in the Player's handbook. There are like 20 Fighter archetypes for example which are from:
Xanathar's Guide to Everything
Sword Coast Adventurer's Guide
Explorer's Guide to Wildemount
Tasha's Cauldron of Everything
+ Some Unearthed arcana
Same for feats, there are TONS, just not in the player's handbook. I'm sure that eventually we will get a lot of options + modders will add everything missing on top.
