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I admit I'm an American and my windows don't open that way, but I'm not sure why whoever made that meme thinks that means a light breeze can't come through them. Because... a light breeze can come through them.
Yeah while the European windows are interesting I don't really get why having a window open 50 different ways is useful. It seems like an over-engineered solution to just cracking the window. I also can't imagine it's more reliable than the good ole vertical/horizontal sliding windows which are just a window in a track.
Many houses in the northeast have the old school vertical sliding windows with an extra glass pane that can be dropped in front of the screen. This creates an air insulated barrier between the internal and external glass panes and even on the 100+ year old windows I've seen they insulate very well.
The main purpose in my opinion is that when the window is tilted open, it's still almost as safe as when it's closed, while still giving you a breeze inside the house. Keep in mind that this windows are sturdy and quite heavy with often triple glass so is not something you easily brake or force.
Newer model have crazy good insulation.
It still seems incredibly over engineered. Every window I've used in the US has a latch you flip out that prevents the window from opening more than a couple inches so that it's still effectively locked. Newer windows here are also all double or triple panes with inert glass in between the panels for insulation.
Keep in mind, they usually don't have central HVAC, so opening the window 50 ways is their temperature control. They're not necessary in the US, but I still think euro windows are neat.