Both the devices are getting the update via OTA (Over-the-air). You can manually check the update from your device’s setting. If the update is not there yet, just wait for a few days as these OTA updates roll out in a phased manner so take time to be available on all the compatible devices.
Samsung Galaxy A30
The highest selling Samsung mid-range device, the Galaxy A30 has now been updated to the latest June 2020 security patch. The update brings the software version A305GUBU5BTF1 / A305GOWO5BTF1 / A305GDXU5BTEB. The OTA is around 299MB in size.
AT&T LG V60
A user in Reddit reported that his LG V60 with AT&T network has received the June 2020 security patch update. As of now no more details about the update is available.
OnePlus 7T Pro 5G McLaren
Another user in Reddit shared a screenshot of T-mobile OnePlus 7T Pro 5G with the latest June 2020 security patch update. The device is getting the update with software version 10.0.36.HD61CB