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.
What is the cpu? If something, zswap (250mb) with lz4 and zram (2gb on disk) with lz4 too, on a lightweight distro on btrfs with lzo compression might make it usable. Disk compression might make it usable on the disk side and memory compression might make it run at least not extremely bad on the cpu side. Maybe cachyos with gnome (i know, but it is the only DE with good touchscreen) can be at least usable.
If more things, I can try to help. I have a linux tablet.
Edit: Maybe more space (external sd card with btrfs and lzo) could be used as /home too, but only with more information given, what is the setup?
Edit: My config that I made it work and run decently:
Yes.