If you have multiple google accounts like the gmail website in a browser on a PC, you can switch between them by just choosing the account from the google accounts menu. Tremendously convenient. Google can have my figurative "soul" for this.

Comparatively if I have to switch between my twitter accounts, it's way more convoluted than it needs to be on a PC/browser. Still, it used to be much much worse when going to their login page gave you a redirect to their app download page. It used to take me ages to locate a workaround.