With MobaXterm you can do "MultiExecution". That means, you open multiple hosts, switch to "MultiExec" and then every command you enter, is entered into all open hosts. You also can exclude hosts by a checkbox, while in this MultiExec-mode.
This is a killer feature. Especially if you setup multiple hosts with the same stuff. On MobaXterm you do it once. With Termius you have to do it for each host again.
I suggest that if you have opened new hosts by "Connect via SSH in a new windows" you can simply "bound" nodes together by clicking a simple checkbox named "Add to MultiExecution", so every keyboard command gets into every window you have bound together.
Maikel Dollé commented
Just started using Termius because of the cross platform en sync options. But now using Termius for a couple of months I really miss some key features MobaXterm has; Multiexec and Split mode.
Still considering if I go back to MobaXterm if this isn't going to be one of the features in the future.