I’m using Voyager from TestFlight on iOS, no battery drain issue here.

Nothing odd happening here.

Not experiencing the same. There’s always room for improvement but i’m at 1% drain every 8 to 10 minutes.

I notice the same thing on Android. My phone is old and crappy, but Chrome is eating a percent a minute when I'm running Voyager.

Isn’t it just a PWA / web app?

Check battery usage in settings to see if its actually Voyager or the browser etc