Why aren’t Logi Bolt and Logitech Unifying cross-compatible?

Logi Bolt is based on the global wireless standard for simple, secure connectivity, Bluetooth Low Energy Wireless Technology. Logitech Unifying is a proprietary 2.4 GHz radio frequency wireless protocol that was developed by Logitech. Plainly, they don’t speak the same language.

This article is applicable to the following Logitech for Business mice, keyboards and combos:

Mice

MX Anywhere 3 , M240, Lift Vertical, M650, MX Anywhere 3s, MX Master 3s , Ergo M575, MX Master 3

Keyboards

MX Keys Mini, Wave Keys, Ergo K860, MX Keys

Combos

MK650, MK370 Wireless Combo, Slim Combo, MX Keys Combo, MX Keys Combo Gen 2