Downsides to upgrading to Windows 11 26H2?

I got a notification in Windows 11 that the 26H2 update can now be downloaded and installed.

However I have become quite wary of updates from Microsoft after they started using them to insert ads into software applications that I already paid for (talking here about the seemingly unremovable "Upgrade your plan" ad that is now always displayed in all my Office applications).

So my question is: if I install the 26H2 update, will it introduce ads into my Windows 11 environment too? Or any other unpleasant surprises that I should know about?

tidozonoada said:

(talking here about the seemingly unremovable "Upgrade your plan" ad that is now always displayed in all my Office applications

Click to expand...

That has nothing to do with 25H2, or 26H2.

It's Office doing what it does...