Sacrosanct
Legend
Can you make a character in 10 min sure, should you probably not.
I build my characters, I think about what feats they will take long before I ever get one to spend, I look for exploits and loopholes, I try to optimize for whatever thing my character is going to shine in. Rolling up a character 10 min, building one easy an hour or more. Then you get into the backstory and interpersonal connections to other PC's and existing NPC's. If you are a religious character pouring through the beliefs of the deities in the world that grant your desired domain. If multiclassing is part of the build things just got more complicated and you need to make sure you meet the ability score requirements, and start to think about when you should take those levels and what class is first, the one with the higher starting h.p, the one that gives more skills, the one that gives the best armor?
So yeah just winging it picking a race, class, background, rolling some stats can make a character on paper but not one I would want to play in a campaign.
The fact that you do the bolded part, but then more importantly say you do all the mechanical optimization before you even think about the backstory, personality,and role-playing elements of your characters explains why we disagree on just about everything.
for example, I am quite literally the opposite. When I create a PC, I envision what they look like, how they act, and what general schtick they do. then I look at what class/background combo fits that archetype the best. I don't do any optimization or looking for loopholes at all. The role-playing during the game is far more important to me than making sure I squeaked every little +1 possible.