I have the 8gb model running Arch Linux with sway wm. Instead of the default keyboard I have a split ergonomic mechanical keyboard. A bit unconventional, but it's my favorite dev machine! Helps me keep my shoulders and neck happy.
I thought about doing exactly that! Down to using sway and a "proper" keyboard. Are you happy with the performance?
I'm really happy! The 8GB model is super snappy with Arch+Sway. Battery life with full brightness is ~4-5 hours. If I'm overloading it maaaaybe 3.5 hours, but that rarely happens. It's so small that I'll throw a battery pack in my bag with it and charge it while using it if needed too.