The secret must be to wait for an electricity powercut. With buildings and streetlights all around my garden it is impossible to see anything but a very small circle straight up above, but even if I could magically remove those, then there would still be general light pollution from the city around the horizon. In fact, there is nowhere I know in England, even away from cities, with no light pollution. The secret is to go on holiday into some wilderness. Australia and New Zealand were fabulous - the whole Milky Way being visible was something I'd always wanted to see since childhood.
However, that article is about Astronomy Apps and yes, they are great. I have two free Apps on my phone. Much better than trying to look at Norton's star maps and position them the correct way around, in the dark.
And yes, you can still see phases of the Moon, the planets, the ISS and Starlink from your city back garden. Depending how far North you live you can see Aurora.
I also have ancient 10 x 50 binoculars, also on the advice of Patrick Moore. They are great for Astronomy in your back garden. They are a bit heavy to carry, so not so good for birdwatching. If you want more general purpose binoculars then you should consider that.