you don't need to. I usually turn on my laptop gui node to create a transaction with my hardware wallet.
my desktop node runs one 24/7 to send notifications to my phone, as well to provide blocks for my lightning node.
Discussion
Makes sense. I haven't gone as far as setting up a separate node yet. I understand the value of running a node though, so I've found this to be an easy route.
I usually just run the node at home and use a separate laptop to work during the day.