Google claims the average time to upgrade between Oreo and Pie was cut down by 3 months and expects upgrades to Android 10 to happen even quicker. HMD already updated the Nokia 8.1 to Android 10, while Essential, Xiaomi and OnePlus also have Android 10 on their devices.
Google expects more manufacturers to jump on board and offer a stable build of Android 10 before the end of the year.
This is a major breakthrough in the Android fragmentation issue and will hopefully carry on with future iterations of the OS. Having popular manufacturers like Samsung who haven't had the best track record with Android update speeds in the past, in particular, is definitely a welcome addition.