“Where can I learn ArcGIS Enterprise?”

A few years ago I stumbled upon this Reddit thread. WebGIS was already there and I could see the emergence of ArcGIS Enterprise day by day, and I wanted to learn more about it. I will always remember the below comment:

The best place to learn Enterprise is by working at Esri as an Enterprise technical support analyst. You will get months of training in addition to assisting with hundreds of cases. Any enterprise courses (Administrative workflows), etc will be paid for internally. The rate of learning and growth is astronomical and I am sure that you can get the Enterprise Administration Professional certification within a year. Enterprise has a very steep learning curve but once you overcome that, you will feel confident in managing your own infrastructure. The job is huge on research, testing, destroying/rebuilding components, and being proactive. Proactive is critical I would say- doing your due diligence to find the answers (research/testing) before asking for help. This is speaking from experience. If you want to go far, this is the position to go for. This is not an easy path & it will have many obstacles along the way; however, those all serve as stepping stones toward growth.

And you, how did you learn ArcGIS Enterprise?

I will try to make this post dynamic and so to add interesting resources that can help to learn and know more about ArcGIS Enterprise.