Has yet to happen to me yet. Usually nothing is said, the person will turn off the music, stop screaming, or I’ll just keep it muted / report if there is actual toxic behaviour happening.
Plus, stating I muted someone isn’t classified as toxic, is not being toxic, and unless I start actually having toxic behaviour (Death threats, name calling, racist comments, homophobia, etc) your report is a false report.
Is stating: “Had to instant mute, good start”
Game sabotage? I wasn’t using in game mechanics to throw my teammate off a cliff, nor was I feeding, nor was I locking them in spawn.
Maybe abusive chat? It wasn’t hateful, discriminatory, obscene, etc. If anything, it’s informing my teammates that I have muted one of our players, thus if they stop screaming into the mic, playing loud disruptive music, etc I can be informed that “Hey, they stopped that and are actually being helpful now, feel free to unmute”
Was it spam? Well, it wasn’t stated multiple times, wasn’t consistent, wasn’t flooding the chats…
So if anything, you’d be false reporting because of stating I muted a player who could be doing any of the following: Playing loud disruptive music, yelling / screaming into the mic, “Disrupting the use of normal communication channels” (Which Is actually against the rules and pulled right from the OW ingame report system), etc