Some people will put it as as small server somewhere, then this battery is like a backup power for servers but built-in. Framework even sells a small case for this sort of usage. If I had skin in that game, I would do this. For developping end-user software, just ssh in and program away!
IIUC, the chemistry with a typical UPS battery would be much more favorable for constant power than a laptop... with probably-questionable management software to boot
I say this while truly enjoying my F13; nothing against them
The latest firmware update included changes to how the battery management handles long-term constant power. Too soon to say how much it helps, but it at least is a thing they are addressing.