I am running the most current version of Thunderbird 115.3.2 (64-bit). You need to take a look at why the Antimalware Service Executable is continuously running as a result of Thunderbird running. This is not new to this release. I am running a new HP Elitebook and if I have Thunderbird open, Antimalware Service Executable is running between 14% - 25% of the CPU utilization at all times. The only way for me to have a computer that is not constantly pausing, I've had to go back to Outlook.
