Ask HN: Battery life for graphical Linux VMs (or Asahi) on Apple Silicon laptops

I'm considering getting a 16" MacBook Pro as a daily driver, but I am unlikely to be able to switch to macOS, so I'm looking at either Asahi on an M1/M2 device or a graphical Linux VM (not limited to ≤M2 devices) in which I do all my work. For what it's worth, most of what I'm doing in a day is running rustc on a large monorepo.

I wouldn't expect great battery life from Asahi yet, but I haven't been able to find much real data besides that it's…less good. Any concrete numbers from those of you daily driving it for specific workflows?

Similarly, what's the battery hit like from working primarily in a VM? I haven't been able to find much in the way of testimonials online. I'm sure there's some hit from having the VM's scheduler / power management do the job of their macOS counterparts, but how bad is it?