Hi Ann and Chloe,
I am also from Melbourne. Like you said during this socially restricted time, making a phone call or checking up on someone can be so valuable in feeling connected.
I do think speaking over the phone feels more authentic and reassuring than a message. I feel that some, not all young people nowadays have grown up to view messaging as an easier process, not requiring as much energy as opposed to calling. This just comes down to individual preferences, values and reasons.
In the end, genuineness and effort will transpire through actions and efforts in staying connected.
All the best!