Windows 7 goes end of life in 2 weeks. Unless you're using an old computer your hardware (e.g. CPU) is probably not supported, even if it does run it won't run properly. With EoL approaching Nvidia/AMD will stop publishing driver updates and new GPUs won't be hardware accelerated. The security model in Windows 10 is as big a jump as XP -> 7 was. It often takes manually loading additional drivers to even get the installer to recognize your disks/hardware.
Chromium Edge will support windows 7, ironically the release date it's just one day after Win7 supposedly goes eol.
and of course Windows 7 ESU support will end in 2023.
Windows 10 is vastly superior to 7 with just a few UI tweaks. It's also supported. Performance is on par or better. If you looked my desktop, you'd be hard pressed to tell it's Win10.