What I am looking for is a lighter alternative that supports Bluetooth and is suitable for coding. The “MX Keys” might work, but I'm sure there must be better alternatives from other vendors, too.
on the logitech front i've tried all of their bluetooth multi device keyboards, the MX series is the only one that felt right. but they're heavy. (im in banking so needed the 10key version. 10key less is going to be lighter but probably not enough to want to drag it around with me)