Cloud Computing has transformed the IT industry like none other. That has created newer opportunities in the domain, and everyone is interested in making a career transition to the Cloud domain. It has created a high demand for Cloud-certified professionals and those with the right skill sets.
With the ongoing pandemic, it's still difficult to go out and learn courses or undergo training. So that's why the best option is to enroll in online training for Cloud Computing. Then the answer to your question would be Yes. Cloud could be learned online. If you are interested in mastering Cloud skills then I would recommend you to enroll in Cloud Architect Masters Course from Intellipaat.
Also, watch this video of a learner who enrolled in this course and even after belonging from a non-tech field and successfully achieved a career transition.