Is this possible?

[lovesmayfamilis]

In addition to all the above answers, I accidentally came across an article that talks about the possibility of removing the password from the keyboard in 0-60 seconds on a thermal trail. Scientists from the University of Glasgow told about this and developed a really effective ThermoSecure model for recognizing keys pressed by a thermal trace.
Source link: https://prog.world/removing-the-password-from-the-pc-keyboard-after-0-60-seconds-by-thermal-trace/
As an option to ensure the safety of your device, in public places when using the keyboard, it is better to cover it not only while entering personal data but also for 60 seconds after that.

[2stout]

The only ways this would seem to even be possible is if you got some malware with a keylogger included- this wouldn't be in the keyboard itself or if using a wireless keyboard and you somehow got infected firmware- this would seem to affect some kind of module within the keyboard.