A while ago, I worked with one of the largest companies in terms of market capitalization in Southeast Asia. One of my roles there was to redesign one of their digital products and coach their team to conduct usability testing. Surprisingly enough, the manager did not have any clue about Usability Testing. It seems that usability testing was not a default part of his learning on Agile and Scrum. Furthermore, when I started to talk about integrating Usability Testing in their sprint cycles, the manager said their team was not ready.
As a matter of fact, there were tens of other corporate teams that similarly do not know how to conduct Agile Usability Testing properly. Luckily, while conducting Agile Usability Testing requires skills and knowledge mostly gained through experience, there are guidelines that can help your Agile Usability Testing journey.