I'm not sure why the products in my Italian feed have been pending initial review for weeks.

Depending on the market, Google may have different requirements for initial product reviews. This review usually takes 3 days. However, it may take longer in some European countries.

In order to speed up the initial product review process, you can pause the feed's refresh in our app.

The feed is scheduled to refresh daily. So every time it refreshes, Google may decide to review it again if they believe it is a new feed.

You can pause it under the summary tab.  And then enable it when it's ready.

After that, pause that feed as well in your Google merchant center