Horrific. I was in Melbourne in a 2 bedroom flat with no garden, single parent to 2 young teenage boys. My sisters were outside if the allowed area so couldn't see them until they extended the limit toward the end of the lockdown.
The only shops open were the supermarkets and even when they had stock in there were strict limits, eg only 2 tins of canned food per person.
Everything else was click and collect - I remember tracing DSs feet out onto a paper and working out their trainer size and hoping for the best. Bought cheap ones as I couldn't risk spending a lot of money on poorly fitting shoes as they both have slightly pronating feet. Could only travel 5km as well, so I my 1 shopping centre we could go to (police set up random roadblocks and would check your licence and issue hefty fines if you were outside your area).
My DDad who lived interstate fell ill and passed away in the gap between our two main lockdowns so I was able to see him before he died and was there for the funeral. But one week difference either way and one of them wouldn't have happened and I would have been broken hearted.
Police used to patrol our park and if you dared to stop there you got fined. Couldn't even rest on the grass or a bench, you had to keep moving.
We were allowed outside (off your own property) for 1 hour a day and my DSs were very conscientious and wouldn't break the rule by going out for 2 walks in a day.
I ended up buying a totem tennis set and setting it up in the small communal lawn near the front fence and letting the boys work off some energy that way.