Yes indeed, I've had RSI in varying degrees for decades ago I'm very careful with it. Though it's easy for bad habits to slip in.

But part of this is that I will feel very quickly when something is ergonomically wrong. The butterfly keyboard in particular but also Apple's super flat magic mouse.

On the other hand, it doesn't have to be something super fancy either. Even the basic Microsoft wired ambidextrous (so not officially "ergonomic") mouse serves me well.

The older Apple keyboard (Island style) also suits me. It's not all bad :)