I had an electric for about ten years, then I bought a gas mower, which I have had for about ten years.
The electrics are a pain in the ass because of the cord.
The gas mowers are a pain in the ass because you need to buy and store gas. It can be smelly and inconvenient, and the first time you start them in the spring can take a bit of work. But, it is more powerful, so the grass shoots into the bag better, so the bag doesn't clog up as easily. In either case, the pushing is no problem.
Both types are a pain in the ass, because you have to mow the lawn.