How to change de Message List display mode?

How do I change the Message List display height?
I can’t seem to find a way to change that, so I am stuck with the compact list, when I would like something like this:

I have tried different themes, but that does not seem to affect the Message List display mode. It is also not available under Appearance, so I have no idea how to set the Message List to show up like in the above picture.

Unsure if relevant, but I am on Zorin OS (linux). 1.10.3 installed via flatpak.