Does Tor Browser still allow JavaScript by default? Because if you block execution of JavaScript, you won't be affected from what I understand.
Disabling JavaScript actually greatly increases your fingerprint as not many users turn it off, so that instantly puts you in a much smaller bucket that you need to be unique in. Yes, not having JS means it limits your options for gathering other details, but it also requires much less effort to be unique now without JS.
Tor Browser also doesn't spoof navigator.platform at all for some reason, so sites can still see when you use Linux, even if the User-Agent is spoofing Windows.
Because TBB has javascript on by default, turning it off increases your signature. It would be better if TBB defaulted to js off, with a front panel button to turn it on.
JS also dramatically improves security. TBB is stuck in a 90s mindset about privacy, as if Firefox exploits were not dime a dozen. Especially with AI making FF exploits more available, we can expect many tor sites to be actively attacking their visitors.