So I've got the Legion Go 2 Z2E and it is phenomenal. An unreal device. Oled HDR with VRR is god tier. Been playing around with it today.
Performance FPS wise seems actually significantly higher than reviews would suggest. May be down to needing to do some out of box tinkering to get there. Eg. For some reason in the bios these shipped with only 2gb allocated to VRAM. I upped this to a safe 12gb. Something perhaps YouTube influencers don't realise, only seen one mention it.
Plus on handhelds you need to power down the CPU so more of the wattage goes to GPU, so windows / CPU profile for efficiency (with tweaks) goes a long way.
This thing stays cool and quiet! At 18w it beats out the Z1E at full blast, while battery life goes to 2.5-3hr mark, at 30w plugged in it is stretching it's legs.
Think I might cancel that Xbox rog ally x order now. Don't think it gets better than this until there's something more powerful and more efficient.