I have been exposed to ZBrush for a long time. But the ZBrush back then and the ZBrush of today are very different.

From brush feel to additional functions, etc. The workflow derived from that.

I think it's essential to learn ZBrush's features in order to learn grungy workflows.

However, it is also true that there are not enough lectures to study ZBrush one by one. It's an old version

I feel like both Gible and Max have changed a lot since 2020. So, I think I need to learn new tools to adapt to the new workflow.

2021 is a relatively new version, and if you are curious about new features, you can look at what was added later.

There are examples as well as simple Zbrush, so I recommend this lecture, which is a relatively new version, for beginners or if you want to break away from old tools.