I have a FITBIT VERSA 2 and I'm actually very satisfied with it, but the pedometer counts steps that I don't take, like when I'm sitting at the laptop and typing on the keyboard, it counts 5-6 steps but why
In what time does he count 5 to 6 steps? This is completely normal if he counts a few times a day even if you haven't taken any steps. The steps are recorded using vibrations that are detected by sensors such as the accelerator and magnetometer. There are of course inaccuracies.
A pedometer like that doesn't watch you. It measures its own acceleration in all three spatial directions with acceleration sensors and tries to recognize from the acceleration pattern whether you are walking, running, climbing stairs, etc. Depending on the movement pattern, this sometimes works more or less well.