Here are most of the Operating systems I have used in my life!:

Used on real hardware:

• MacOS X El Capitan
• MacOS X Snow Leopard
• Windows 10
• Windows 7
• Windows 11
• Linux Mint
• EndeavourOS
• Omarchy (currently using)
• ios (currently using)
• Meta Horizon OS
• FireOS
• RockBox (currently using)
• Stock iPod OS
• Xbox OS

Used in a Virtual Machine:

• Windows 2000 Proffesional
• Windows XP Proffesional
• Windows 98