What stabby said. I wish you could move settings and keybindings over profiles though. Especially when you're making a lot of chars for testing but that's a nitpick.
You mean, the config.lsf, modsettings.lsx, profile.lsb, and UILayout.lsx files in the the Baldur's Gate 3 > Player Profiles > [ProfileName] directory? I didn't try copying those over, but copying them will probably work.