Can we show the recommendations on the cart page?

Yes, the Also Bought app can be displayed in the shopping cart page.

The app has the option to be displayed in the shopping cart page. It is always displayed in the product pages.

You can use the option below from the preference page to enable the widget on the shopping cart page:

Shopping cart recommendations are only displayed on shopping cart pages. If you have a pop-up showing cart or a drawer shopping cart, you can probably change it to a shopping cart page from your theme preferences.