The "adaptive scrolling" function mentioned by Logitech Marketing simply does not exist. The mouse scrolls a maximum of 150 lines at a time. The advice to switch scrolling to "screen page" is not practical because I also need to be able to scroll line by line.

This exact question has already been answered by my colleague, but I am happy to copy the answer here: "With the business version, you will certainly get a Bolt receiver. With the "normal" version, you may still get a Unifying receiver. Logitech recently started including the new Bolt receiver with the normal version. This is said to be more secure. Attention: Bolt and Unifying devices are not compatible with each other.