Battle royale doesn't work really well with Pac-Man for a couple of reasons: Tetris 99 is quick, fast and so are the matches. Pacman 99 requires the player to spend a lot of attention and time for a single match, so it doesn't suit itself for long sessions. Not only that, but being attacked by another player directly slows you down, which affects the player's input and that's not fun.

It was alright while it lasted, RIP.