Yes. In Meta Ads Editor (the bulk ad upload screen), after you choose the ad set, the Edit button (CTA) section appears just below Page and Instagram.

  1. Select Edit button (CTA).
  2. Under Ad button, choose one of: Learn more, Buy now, Sign up, Subscribe, Contact us, WhatsApp, Get offer, Book now, Download, Watch more, Apply, Request a quote, or Order now.

Your choice applies to all ads in that upload and changes only the button: the destination link stays the same. If you don't select it, each ad uses the button from the last ad in the ad set (the default). For profile, lead form, and message ad sets, the button follows the ad set's destination and can't be changed.