My tablet draws 4.5w at peak, at low loads it draws almost nothing (x86_64 tablet), maybe it’s the design of the laptop/tablet, but mine just consumes the same even with waydroid on, maybe setting efficiency in the BIOS help, but idk. On windows it just consumes a power plant every minute, linux is just efficient.
Waydroid is a android translator(?) for linux on wayland, it runs android applications in a translation layer (android has linux under it), so you can install a ROM (there’s a default one without google applications like google play services, but you can search a ROM with it) and run android applications like any phone with a custom ROM.
Edit: The tablet with waydroid running:
Waydroid with a ROM with GAPPS? I use lineageos on my linux tablet, a lot of android games run just fine.
Yes.