As of now, South Korean manufacturing giant, Samsung, is taking its time in releasing the Android 10 update to its flagships. The Android 10 beta is now available for the Galaxy S10 series in some regions. However, the Galaxy Note 10 is not in the queue for this update yet, at least not a stable version. Nevertheless, a Reddit user recently claimed that his Samsung Galaxy Note 10 received a stable version of the Android 10. However, this seem to be an error push from Samsung as it has not actually officially pushed the update.
The Samsung Note 10 that received the stable version of Android 10 seem to be getting the stable version of the Galaxy S10. It is a Canadian unlocked version and uses Belarusian MTS operator services. No other users in Canada or Belarus have received the update at this time. Furthermore, the One UI 2.0 beta project excludes these two markets, thus the official push is certainly not active.
It is a common phenomenon for Samsung to accidentally roll out updates to users. However, this does not mean that the actual update is arriving soon. The Samsung Galaxy S10 had seven beta updates before upgrading to the stable version. The Galaxy Note 10 only received its third beta update last week. Samsung is likely to release another one or two beta updates before the stable version arrives.