This New Age of Thunder
Most of the world has settled on on main Pantheon of gods, but each area has it’s own particular deities. There’s nothing saying that an elf from Ilonos couldn’t worship a Karakosi goddess, but it would certainly be a talking point.
Most all Deities get along fairly well (apart from some who really don’t) and barring certain places, most any holy worship is accepted.
Worship practices generally vary by location rather than deity, with some worshippers acting entirely different from others. This is what happens when you have basically only one pantheon.