I will wait and see what happens on a fresh reboot tomorrow morning as this seems to be when the request to update happens.
On our systems we only use Microsoft Defender and its built-in scan functions so nothing would be changing anything.
I am still curious as to why the versions would be different based on whether Steam is installed. Maybe you can elaborate a little more on that as I do have one desktop that runs Steam and Origin games that also 'had' this issue. The Desktop reporting 4.07.02 does not yet have Steam installed as it is a new build.
Magically it appears that the annoying request to update dialog no longer appears on one of my desktops. I did nothing to stop this from prompting as it just resolved itself after ignoring it for days.
This appears to have started from an initial request to update Fences4 back ~2 weeks ago. Can you confirm that there was a recent maint release that did get installed ~ 2 weeks ago?