It’s not supposed to, at least if you have city (i.e. piped and purified) water. That’s because the city water plant outputs at a particular pressure, and distributed pumps ensure that the same water pressure is maintained even if you live far away.
It’s more likely that this is pure coincidence – maybe there was a broken pump that was fixed, or the water company changed some setting.
The other possibility is that your water pressure regulator (a small, about 6-inch device installed on your water line mounted just inside the house where the line enters) has finally given up the ghost. They last for about 20 years and then go kaput. If your pressure regulator stopped working, you would see the results you describe.