iPhone not making sound NOR VIBRATION when trying to "Play sound" from other device on "Find My"

After 5 hours my phone being lost in my own house, I tried using the feature "Play Sound", 78 times to be precise:

I finally found my phone, not thanks to "Find My".

The phone made no noise nor vibrated.

You can listen a phone vibrating when on silence, and I spent too much time listening for it on every single room.

I confirmed it did not sound nor vibrate because when I found it I waited to pick it up to confirm this, and indeed, no vibration, no noise.

I know, it may be a bug, and yes, a reset fixed it, but imagine if I had lost my phone outside my own home, good luck with that.

Find My should have checks in place so that the phone not only vibrated even if some software process stopped working, soft or hard reset it if it's not making sound/vibrating, if you need to use the accelerometer or the microphone to validate if it's working, idk.