The workaround for this is that you can now get external USB batteries that support PD, and most Lenovos use USB with PD for their main charging cable, which means you can carry around a device that can charge your laptop on the go.
It's not as slick as the "swap batteries, now you're fully charged", but on the other side, the USB batteries can charged without the laptop, and you can pick the size you're willing to carry around.
It's not as slick as the "swap batteries, now you're fully charged", but on the other side, the USB batteries can charged without the laptop, and you can pick the size you're willing to carry around.