youtube brand account vs regular account

I want to start a new youtube channel, and am a bit confused as to the best way to set it up so it does what i want. I understand google account name = youtube channel name UNLESS it's set up as a brand account. When I see creators with multiple channels eg Doug de Muro and more Doug de Muro -...

Hey guys! I have searched all over the internet including YouTube to see what the differences were between the "brand account" and the regular account I originally started YouTube with. Any input or any links will greatly appreciated!