Laser-com is just another form of communications...
The lasers are not the stuff of StarWars...
If you put your face in the beam we used to transmit 600Mbps from the moon to the Earth you wouldn't be able to tell if it was on or off...
The complaints by astronomers about starlink have nothing to do with lasers, but because they reflect sunlight well and there are so many of them... even when they do have lasers firing, observatories will not see them unless the lasers are precisely aimed at the observatory.