There are mods on nexus, although you would have to restart. They mess up your game in progress pretty bad. And yes, giving us level 5 for EA only makes sense. Larian can't seriously be planning to go live without us testing all those high level wizard spells.
I didn't think there were mods yet. It took a bit to find them because searching for Baldur's Gate 3 or bg3 only gave a small subset, but I think I found some here that will help, if this was installed correctly. Thanks.