Multiple lock commands can damage/slow the lock?

I have multiple automations that try to lock my door after it closes, does this makes the lock slower? Or damage it somehow?

No. The Smart Lock can only handle 1 request at a time.
But it costs you energy (leds blinking, data traffic) and produces unnecessary stress to the system (multiple ble and data connections at the same time).

Thanks for the tip, I only have that because I’m the past I couldn’t rely only in the Homekit Bluetooth automation, but lately it has been working fine, so I may drop these duplicate flows