Same as experience here, i.e. it's not a popup but an icon in the address bar which needs manual user action to trigger (it also supports voucher codes).

I do not like the feature, but it's not as UI intrusive as the article suggests; it is however privacy invasive. Despite disabling multiple edge features related to telemetry, this is a new default-on option.

I like Edge enough that it's my default browser on Windows, Android and secondary to Firefox on Linux. However, one or two more features like this and I may use something else.