Hello
Yes, your suspicion is correct. This issue could be related to a recent Windows update, specifically KB5028244. After installing this update, apps deployed using ClickOnce might begin to prompt for installation even when the ClickOnce apps are already installed and marked as “trusted”.
A temporary workaround for this issue is to uninstall the impacted ClickOnce application and reinstall the application again. However, Microsoft has acknowledged this issue and they will address it via a Known Issue Rollback (KIR).
Please note that these are general suggestions and the exact solution might vary depending on the specific circumstances of your application.