Processes in Microsoft 365 Insider for installing preview builds, activating subscriptions, and keeping apps up to date with the latest Insider features.
Hi there,
MS office 2019 and 2016 can not run simultaneously, so my suggestion would be that you do not install the updates. These updates are being suggested since you have an MS Office subscription and 2016 is still considered the 'standard'.
Further Information about Office 2019 can be found here:-
https://support.microsoft.com/en-gb/help/413331...
I hope this helps!