I tried linux only but it got annoying when my brother nagged me to play fortnite with him and asked why can't I just install it when I had chimeraOS as the only os on my ally
it has better TDP control options than the ally has with windows and I did notice some increase in battery life, although it wasn't that much (the Z1 extremes fault)
better drivers, better starting experience, better stability, other distros and android emulation possible, its overall a better distro, everything about it makes the deck experience better