yea, and no matter if its in your blood or raw in the world, you have to use the weave as a "filter" all casters have to, what differs is how you tap into or use the weave, but all casters have to, as the rule state, all magic depends on the weave... there is no exceptions,bear runelords but that was before the weave, read what i posted... even a ranger use the weave by their "faith" in nature and cuddly bambi deers
now if you want to play with your own rules, thats oki, but in DnD 5e, its crystal clear...
a sorcerer can do
"The Weave of magic infuses every part of Faerûn, and some people(the sorcerers) have the natural ability to perceive, touch, and shape the Weave."
a sorcerer can shape the weave!
https://www.worldanvil.com/w/forgotten-realms-djverne12/a/sorcerer-articlealso you can see a sorcerer as an "electric eel", and a wizard is a "power plant engineer".
a wizard without the power plant(the weave) can not make any power. (engineer)
but, a sorcerer can make power from him/herself. (electric eel)
