CancellationTokenSource(<timeout>) has incorrect cancellation status when used in WebGL Player

Thank you for reporting a bug to Unity. Managed (C#) threads aren’t supported due to the lack of a multithreaded garbage collection feature in WebAssembly. Due to this limitation, anything in the C# System.Threading namespace isn’t supported. For example, any timeouts specified in System.Threading.CancellationTokenSource don’t actually time out, because the cancellation mechanism is based on System.Threading.Timer. For more information please refer to "Lack of managed threading support" section of our documentation https://docs.unity3d.com/6000.1/Documentation/Manual/webgl-technical-overview.html. Today we will be closing this case. Thank you again for taking the time to report this issue.

Thank you for reporting a bug to Unity. Managed (C#) threads aren’t supported due to the lack of a multithreaded garbage collection feature in WebAssembly. Due to this limitation, anything in the C# System.Threading namespace isn’t supported. For example, any timeouts specified in System.Threading.CancellationTokenSource don’t actually time out, because the cancellation mechanism is based on System.Threading.Timer. For more information please refer to "Lack of managed threading support" section of our documentation https://docs.unity3d.com/6000.0/Documentation/Manual/webgl-technical-overview.html. Today we will be closing this case. Thank you again for taking the time to report this issue.

Thank you for reporting a bug to Unity. Managed (C#) threads aren’t supported due to the lack of a multithreaded garbage collection feature in WebAssembly. Due to this limitation, anything in the C# System.Threading namespace isn’t supported. For example, any timeouts specified in System.Threading.CancellationTokenSource don’t actually time out, because the cancellation mechanism is based on System.Threading.Timer. For more information please refer to "Lack of managed threading support" section of our documentation https://docs.unity3d.com/2022.3/Documentation/Manual/webgl-technical-overview.html. Today we will be closing this case. Thank you again for taking the time to report this issue.