The first step is to identify where the problem is coming from: keyboard or PC. Test the keyboard on another computer (or on a phone/tablet via Bluetooth). Then, on your PC, quit Logi Options+ completely (close it from the icon in the notification area) and test AltGr again. If the problem also appears on another device, it's probably a keyboard/firmware problem. If it only happens on your PC, then something is remapping AltGr (Options+ Smart Actions/assignments, PowerToys Keyboard Manager, AutoHotkey, etc.).
Note (unrelated to AltGr): the MX Mechanical often comes with the default media keys on row F. If you want the normal F1-F12 behaviour, you can change it in Logi Options+ (keyboard → General → enable "Use F1, F2, etc. as standard function keys"), or switch directly to the keyboard with Fn + Escape (Esc).
On this wireless mechanical keyboard, high (é) and low (à, ò, etc.) accents are generally obtained by using the key combinations specific to the operating system, as the keyboard is in English international layout (ING. Int.). For example, for a circumflex accent, press Shift + 3 (which carries the ^), then the letter you want. For a grave accent, use Alt Gr + semicolon, then the letter to be accented. These combinations are typical of international QWERTY keyboards and also work on this type of Logitech keyboard.
No, this is a wireless keyboard only. The USB-C cable is only used to charge the battery. If you want a wired mechanical keyboard, I recommend that you use the "Keyboard Type" filter and select "Mechanical" and "Signal Transmission" and select "Wired".
No, unfortunately not. The MX Mechanical only works with the new Logi Bolt dongles. However, the keyboard itself is very cool for typing. But it takes a bit of getting used to due to the low pressure point.
These are GX Red switches, the GL is the designation for the switches on Logitech's low-profile keyboards and linear is the category of switch actuation system.
The keyboard settings are configured on the computer using Logitech Options+. They can be restored via a created Logitech account using "Settings Backup" and "Restore Settings from Backup". This also applies to other systems on which you use Logitech keyboards (assuming compatibility with Logitech Options+).
We just take the stock picture of the manufacturer. But you can find the actual image of the US layout on this following link: https://www.logitech.com/en-ch...
As far as I know, you can make up to 3 switches on the computer. In the block above the arrow keys, the top three keys are intended for this. Since I haven't found any drivers on the Logitech site that would allow any settings under Windows, I assume that you can't officially change the keys (see).
https://www.logitech.com/de-ch...
Try FN+F5. Modern keyboards like to have the F keys assigned more than once, as these are only used in a few cases.
Maybe the keyboard has an FN lock key/switch?
I know that's not a solution, but pragmatically - I feel I only need the classic F5 function quarterly - and then it also works with the right mouse button, update...