Ok, so this doesn't seem to make much sense, but oddly enough, the only way to get the MX Master 3S to work smoothly on a new M2 MBP, was to also connect the USB cable, while using the mouse in Bluetooth mode through the dongle that came with it.

For some reason, MacOS stubbornly refuses to accept the MX Master 3S if it's only connected by USB. Same is the case when trying to connect through Bluetooth directly - i.e. without Logitech's dongle. In both cases, the mouse isn't recognized.

Beside that, neither disabling "Allow Handoff between this Mac and your iCloud devices" in System Preferences->General, nor installing Logi Options+ had any (noticeable) effect.

The fact that the mouse is working flawlessly on both Ubuntu and Windows indicates that this is a MacOS issue.

Ok, so this doesn't seem to make much sense, but oddly enough, the only way to get the MX Master 3S to work smoothly on a new M2 MBP, was to also connect the USB cable, while using the mouse in Bluetooth mode through the dongle that came with it.

For some reason, macOS stubbornly refuses to accept the MX Master 3S if it's only connected by USB. Same is the case when trying to connect through Bluetooth directly - i.e. without Logitech's dongle. In both cases, the mouse isn't recognized.

Beside that, neither disabling "Allow Handoff between this Mac and your iCloud devices" in System Preferences->General, nor installing Logi Options+ had any (noticeable) effect.

The fact that the mouse is working flawlessly on both Ubuntu and Windows indicates that this is a macOS issue.

Ok, so this doesn't seem to make much sense, but oddly enough, the only way to get the MX Master 3S to work smoothly on a new M2 MBP, was to also connect the USB cable, while using the mouse in Bluetooth mode through the dongle that came with it.

For some reason, MacOS stubbornly refuses to accept the MX Master 3S if it's only connected by USB. Same is the case when trying to connect through Bluetooth directly - i.e. without Logitech's dongle. In both cases, the mouse isn't found.

Ok, so this doesn't seem to make much sense, but oddly enough, the only way to get the MX Master 3S to work smoothly on a new M2 MBP, was to also connect the USB cable, while using the mouse in Bluetooth mode through the dongle that came with it.

For some reason, MacOS stubbornly refuses to accept the MX Master 3S if it's only connected by USB. Same is the case when trying to connect through Bluetooth directly - i.e. without Logitech's dongle. In both cases, the mouse isn't recognized.

Beside that, neither disabling "Allow Handoff between this Mac and your iCloud devices" in System Preferences->General, nor installing Logi Options+ had any (noticeable) effect.

The fact that the mouse is working flawlessly on both Ubuntu and Windows indicates that this is a MacOS issue.