Yolink sensors won't trigger automations?

What do the sensors look in in Developer Tools / States? Or do they just send events?

A standard binary_sensor will be 'on' or 'off' despite what the front end might say about open / closed. Safest way is to use a State Trigger (not a Device Trigger) using the entity (e.g. binary_sensor.front_door or some hideous alphanumeric identifier) and checking its state.

So are you saying you can’t read your sensors or operate your switches?!

See sections 9, 11, 13 and 14 of this: