The main reason it was purchased, apart from being a gift, is that it would be used between two computers with Windows 11 that have a USB Bluetooth adapter plugged in the back (TP-Link UB500 v1).
The adapter works perfectly with Huawei Freebuds Pro wireless headphones, iPhone 13, but it has had issues with this specific keyboard. For this price, it could easily come with a USB Bluetooth adapter for better device communication, as Logitech has accustomed us to with the MX Anywhere 3 series (15-20 euros more than this keyboard), which has been working perfectly for 1.5 years! Even if the product had to cost an additional 15 or 20 euros, I understand it and would prefer it over the following situation:
You press the number 2, which according to the instructions is for pairing from the first machine (which is turned off in our case) to the second. If you don't unpair-pair, it will never work. It shows that the computer is connected to the keyboard, but in reality, it is not, and the K380 remains in pairing mode without being detected by the computer. Of course, all drivers, latest Windows Updates, and the software provided by Logitech, Logitech Options (https://www.logitech.com/en-us/software/options.html), have been installed. It's a shame. I would return it, but there is no other available keyboard to meet the needs until the technical check is done.
I have the feeling that Logitech took steps back instead of forward with this product, even though I have been using Logitech mice/keyboards for as long as I can remember using a computer, and for this reason, I clearly deduct 1 star. Otherwise, it is a cute keyboard for use on a computer, with its battery lasting until now, at least 4 months of moderate use (4-6 hours/day except weekends). Judging from the information provided by Logitech Options, it will last for another few months before it runs out.
Do I recommend it? If you want to change devices frequently, definitely not... spend double the money and buy the pink color from Logitech's MX series. If it is a suitable choice for a specific machine, light and small enough to fit in a bag.
I will come back to complete my evaluation at 1 and 3 years of use to see how it holds up in terms of durability and power consumption.
Update 24/4/2023 (1 week later): I still haven't found a solution to the connectivity issue no matter how much I searched and tried. Every time the keyboard changes machines, it requires re-pairing/unpairing (a 30-second process) with the new device, which is very annoying.