>>1449195What it means doesn't matter, what matters is what's banned or not. The user agent switcher extensions will give you lists of user agent strings that you can change it to.
If you wanna know what they mean, Windows NT 10.0 Win64 x64 means you're on Windows 10 64-bit. Firefox/68.0 and Chrome/106.0.0.0 mean you're on versions 68.0 and 106.0.0.0 of Firefox and Chrome. Same with Waterfox and Safari