Pedantic “every country is a different country” aside; Norway and Finland are absolutely fine comparatives.
The population density (in the populated areas), culture and genetic make-up of these countries is so similar that they may as well be considered the same country socioeconomically.
Hell, they used to even _be_ the same country (the union of Kalmar).
I’ve lived in Finland and currently live in Sweden. As a British person I see more similarities than differences. (Language of Finland vs the Scandinavian languages not withstanding)