You make the routine turn the switch on first.

https://preview.redd.it/2emijvdwmy2c1.jpeg?width=1284&format=pjpg&auto=webp&s=965412b8aa55b89ce86f08ae5a368233f781590d

https://www.amazon.com/gp/product/B099KFQT6B/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I have this switch coupled with Sengled Smart Bulbs. If manually pressed the switch does cut power to the bulbs, but when I manually turn it on or ask Alexa to turn it on, the bulbs come on and I can control brightness, color, and temp via voice, app, or routine.

I use this switch with Sengled Smart Bulbs. The switch is there so my wife can turn lights off manually, but all of the smart bulb functionality is controlled via voice commands/routines. I can also turn the switch on and off via routine or voice commands.

https://www.amazon.com/gp/product/B099KFQT6B/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1