Windows 7 has been end of life for many years at this point, so I doubt that this is something that will be fixed unfortunately. I would recommend you update to a modern and supported operating system that still receives security patches.
Respectfully, I would encourage you to stop saying comments like "the staff are useless". I'm a volunteer here, not cf staff, and this discord in general is supported by the community.
As for why it works in Firefox, I don't know. But you're using an end of life operating system. Things will break, you're prone to security issues, and I wouldn't expect anyone to fix their software for an OS that's been EOL for 3+ years.
Chrome actually dropped support for Windows 7, meaning the old version of Chrome is likely the issue. As others have said here, Windows 7 is EOL and I doubt there will be any fixes coming.
don't have to stick to Windows, could try pop OS or some Linux Distro, at least they're supported with security updates. Anyway looks like even Firefox only has a year or so left of support on its Extended Support Release edition
And you can run emulate some Windows programs on Linux but support varies, and it's better to run native Linux programs on Linux (like Chrome built for Linux)
Linux can be ok if you just do basic stuff, gaming is getting there, there's office alternatives like libreoffice, but imo you have to be comfortable googling
depends on your computer, but Linux distros are pretty light weight. There are a number of things you'd have to switch to, like Gimp instead of Photoshop, Libreoffice instead of MS Office, etc
btw I was going to mention: For my own curiosity I spun up a VM running Win 7 Ultimate SP1 and I was able to use chrome and solve turnstile challenges. It looks like in turnstile channel Benedikt was looking into it anyway, but it looks like it may be more specific then just Win 7 Chrome