I think the author might not know that the dongles that Logitech ships are not Bluetooth. They use Nordic's nrf24L01 chips, which run a much simpler protocol, very fast and robust for simple communications.
I use a Logitech MX Master, and while I do enjoy its Bluetooth capability (for laptops), I use a dongle with my desktop, which results in zero latency, no stuttering, and perfect synchronization.
I think the primary culprit is the power management on both the host and client
I have an MX Master and a K380. The MX Master has a noticeable lag in Bluetooth and both will have a noticable delay when first used after a period of inactivity before springing to life. The K380 seems to have a key buffer to mitigate the delay.
If however I have my Bluetooth headphones powered on and active to the host, keeping the bt radio active, most of the issues go away.
Then there's also Bluetooth Low Energy, which is Bluetooth only in name and mandated in the 5.0 version. Apparently most news products use BLE instead of BT, unless they use a well-known profile for say, audio or game controller accessories.
Right. Those old diNovos are a nightmare as well and not only did they ship with their own Bluetooth adapter but required you to install their driver which would install its own Bluetooth stack (the Broadcom one and they used to use I think BlueSoleil before that) over the Microsoft one.
I still have nightmares about those things failing to pair constantly.
It's many years ago so may be inaccurate, but I remember the dongle being the one stable solution. With the onboard BT of a raspberry pi on Ubuntu (or was it Raspbian?), recurring issues. With the dongle, perfectly stable, and IIRC no drivers not in the mainline repos.
The 'Logi Options' software has been buggy for me on Mac Catalina and constantly stops remembering my custom MX Keys or MX ergo/MX Master shortcuts until I relaunch the app. Anyone else dealing with this?
I simply stopped installing the terrible Logi software. I'm fed up with the crap, the resident CPU-eating daemons, the insistence on reporting what I do to Logitech or registering online for a cloud account — enough of this garbage.
Fortunately, the mouse works just as well without the crappy software, once you get it configured.
I use a Logitech MX Master, and while I do enjoy its Bluetooth capability (for laptops), I use a dongle with my desktop, which results in zero latency, no stuttering, and perfect synchronization.