Ive had great success with Mailcow on my Vps, they have good Docs to follow and also setup the DNS. Just wanted to drop that suggestion :)

I didn’t know about the Global Menu Bar, pretty neat.

There is a Plugin for Zsh (ohmyzsh) that gives you that right in the shell. I use it all the time and rely on it. Don’t have the name on my mind though, sorry.

Read the Article. Modern like what most Graphical Editors Ship.

Since maybe 2 years and i am very happy with it. Sometimes screensharing problems but thats it.