When zooming back for landing a G1000 glass cockpit becomes rendered complete useless in 2D too.
Reading the variometer sinkrate - absolute impossible, that´s some number with the size of a dot. Reading the airspeed - impossible - some tiny number with the size of a dot.
Landing with these visuals - absolute impossible.
At the same time having the classic steam gauge on the screen - aha airspeed variometer altimeter - everything checked with the blink of an eye.
Airspeed checking is especially easy on steam gauges because of the green and white arc and the blue and lowest red line. In less than a second I see if the speed for flaps and gear out is okay, and I also see when more engine power is needed if the needle is creeping to the stall speed.
That´s why I fly steam gauges only.
On airliners the situation is different…
Airliner cockpits look great and familiar and modern with typical LCD screens that are in use for about 25 years now. (and not empty and boring and somehow “wrong” like small airplanes using glass cockpits.)
There is perfect help from the autopilot in airliners, for example if the airspeed becomes unreadable when zooming out - no problem the autothrust is always keeping the jet perfectly on 160 knots, the variometer is also not that important because when I sink too fast thrust is getting reduced and when I need some climbing because of gliding to low under the VASI lights the autothrust will give more power to prevent stalling.
And the CRJ without auto-thrust has a nice HUD to keep the important data always in front of my eyes. (and the most important data is: The airspeed and the variometer.)