It's not Apple's fault. @ being on Q is the German national norm [1].
The problem is people who are accustomed to Windows keyboard layouts (which matches the national norm) - they are accustomed to Alt Gr+Q for @, and the Alt Gr key is on Windows the key right next to the space bar... which means they press Cmd+Q on Macs instead out of muscle memory.
You can put in a Windows keyboard layout that restores your sanity on macOS [1] with only the small re-learning of using right Option instead of cmd, the problem is stuff like Adobe Premiere outright refuses to load keyboard shortcuts if it doesn't recognize the keyboard layout.
The problem is people who are accustomed to Windows keyboard layouts (which matches the national norm) - they are accustomed to Alt Gr+Q for @, and the Alt Gr key is on Windows the key right next to the space bar... which means they press Cmd+Q on Macs instead out of muscle memory.
You can put in a Windows keyboard layout that restores your sanity on macOS [1] with only the small re-learning of using right Option instead of cmd, the problem is stuff like Adobe Premiere outright refuses to load keyboard shortcuts if it doesn't recognize the keyboard layout.
[0] https://de.wikipedia.org/wiki/DIN_2137
[1] https://jankarres.de/2013/07/windows-tastaturlayout-unter-ma...