One thing to consider is that once zfs is setup there really is no significant intervention that is needed. I probably haven’t done anything to my proxmox zfs array in years.

I know its almost a meme to say just learn command line, but unfortunately in this case it will really help you understand what is happening and it also just takes a few commands to setup up once and then never worry about it again.

After the inital setup, the zfs GUI will be pretty much unused.

For commands I don’t use often, i use a note taking software to keep track of commands I used during setup because years go by before I use it again. I find the GUI often changes in that time making it harder to replicate whereas command line is the same and easier to document.