Reviews and user reports for this specific build are mixed, leaning toward frustration due to connectivity issues that the build attempted to address but did not fully resolve for everyone:

If you are currently on this build, it is a to maintain online functionality, but it is not a "flawless" version. If you're having trouble playing with friends, ensure every participant has verified their build ID in the game properties to match 9377745 .

The build stabilized the core "Online" menu for many who were previously locked out.

The primary purpose of this build was to correct an issue where players were unable to get online. While it fixed the issue for some, others reported that invites to friends remained bugged or completely non-functional through certain overlays (like Steam versus Ubisoft Connect).

Are you experiencing a specific in this build that I can help you troubleshoot? UNO Patches and Updates - SteamDB

UNO Build was a specific maintenance update released for the Ubisoft version of UNO (primarily on PC/Steam) around September 2022. Critical Technical Status