One thing I found odd was opening a terminal in the host machine by default. For example when you open a terminal, it generally doesn’t open it as the root user in terms of UX, usually it opens up in your home folder as your user. 9 times out of 10, I’m working with files in my home folder, so that’s convenient. If I need to do something as another user such as root, I can switch to that user or use something like
sudo. Besides layering some RPM packages or system updates, I would expect the majority of my time to be spent in a toolbox, not fiddling with the host. If there was a way to set a default toolbox when you open the terminal, that would be a nice UX touch IMO. Even if someone wanted the host to be the default, they would have the option that way.
Since this machine is primarily used for work, I would set that as my default toolbox with all the necessary tooling to do work stuff. I could run a command like
toolbox switch rust-adventures or something like that on the weekends