[CLIENT] Low-Spec mode restarts client two times after each game?

A grating issue with Potato Mode. To save processing power on my weak computer, the client is automatically closed when each new game begins loading. That is expected.

After the game, I'm met with a loading screen as the client automatically restarts. Also expected.

What is not expected is that, after this minutes-long loading screen, I can exit the end-of-game screen, rejoin my premade, and read their message, and then suddenly be faced with another minutes-long loading screen with no explanation.

Why does this happen?