Display issues when Windows 11 system update running?

[yorktraf]

Today Windows was trying to force us to upgrade to Win 11 (from Win 10) and I might actually have accepted it, however, the installation display settings were quite terrible, very tiny and virtually not readable. I did manage to bypass the installation eventually, almost by accident given how little I could see, and spent a lot of time in a fruitless support chat with Microsoft this afternoon. They reassure me my system is compatible and ready to upgrade when I want to do so.

I didn't tell the Microsoft agent about Open Shell but I am wondering whether the tiny on-screen display of the installation screens has anything to do Open Shell on our PC, and thus the upgrade routine not automatically recognizing and using the right display resolution? The agent said the display settings should be automatically detected. The same problem actually happened last week when Windows Updates was installing an update to Microsoft Edge browser. It has never happened, otherwise.