Global forest cover
By - Mizu3
All of Southern Norway were not originally covered by forests no.
Far too many cold mountainous areas for that, this map is a bit too simplified.
Everything gray on this map is too cold to support tree growth.
"Original" at which point of the geologic time scale? "Originally" our planet was a glowing rock under constant bombardment by asteroids.
Don't know if the amazon will still be this dark green if it's a map from 2020
China and India are absolute deforestation zones.