I have 20+ remote systems I need to maintain and apps like this provide tabbed experience like a browser to connect to them.

I've found that if you're using ssh then taking your hands off the keyboard to grab a mouse just to click a different tab is slow and annoying.

I use a terminal multiplexer, tmux, and just keep different sessions open for each server that I need to connect to.

leader = CTRL+b (you can change this but this is the default)

leader s - Open session manager
leader c - Open new window in the session
leader 0-9 - Swap to Window 0-9
leader % - Split screen vertically
leader left/right arrow, move between split screens
leader z - full screen the active screen
leader d - disconnect from the tmux session
etc

tmux -a to re-connect to the tmux session

There's a ton of hotkeys and plugins that can handle essentially anything you'd like to do. Once you learn the few hotkeys (print a cheatsheet and force yourself to use the hotkeys).