Yeah, the extra battery is why I'm sticking with the official strap as well for now. In the meantime you could always use a power bank to get some extra juice. Not as comfortable though.
Personally I can't do without VR anymore, especially during this pandemic. It's not like I'm using it every day though, more like a couple of times per week, but it always blows me away, even after a year and a half. And it's nice to have the ability to go to the cinema, a museum or a film festival every now and then despite everything being locked down in the physical world.