Earlier quoted context omitted.
Insomnia doesn't even come close to Paw due to the amount of features Paw has that Insomnia doesn't. Also, Projects are just Paw files. Inside the files you can group and subgroup requests, too. Unless you meant something else?
That might be true. For me Paw's UI doesn't help me (a simple user vs a power user) to work pleasantly. I am forced in Paw to deal with Projects, difficulty to rename requests, etc.
And, if it helps, you can rename a request in Paw by clicking on its name in the sidebar while you have the request selected or clicking on the name where it shows up as a title in the Description panel in the middle of the screen.