California is not doing anything special. The tech sector provides high paying jobs fueling high housing costs in the San Francisco Bay and other places used as second homes (WFH): Wine country (Napa/Sonoma), the Coast (Santa Cruz, Stinson, Big Sur) or the Sierras (Lake Tahoe).
High paying jobs + high housing prices ---> higher taxes
Taxing tech corporations is more complex and most have stored IP in low tax havens. Note that this is not specific to tech, Wal Mart, Goldman Sachs and others do the same thing.